How to treat pancreatitis in dogs naturally

By Isabella Storyclaire

last updated November 20, 2024

Contributions sourced from

Pancreatitis in Dogs Symptoms, Causes & Treatment

Pancreatitis in dogs is one of those conditions that owners must be informed about before it strikes because the warning signs may not always be obvious at first, the symptoms might be mistaken for something less serious, and yet its potentially life-threatening. The medical definition of pancreatitis is simple: inflammation of the pancreas. But like all serious conditions, there is more to it than that.

Because it is dangerous, a suspected case of pancreatitis needs to be addressed by a veterinarian as quickly as possible and not dealt with by DIY treatments. As with all medical issues, even the best online resource is not a replacement for the medical guidance from your vet.

Before looking at the details of pancreatitis, lets take away the ititis and explain the small but vital organ itself:

The pancreas is responsible for releasing enzymes that aid in digestion. When the organ is working normally, the enzymes become active only when they reach the small intestine. In a dog with pancreatitis, however, the enzymes activate when theyre released, inflaming and causing damage to the pancreas and its surrounding tissue and other organs. According to the Whole Dog Journal, the enzymes can actually begin to digest the pancreas itself, which causes extreme pain to your dog.

Classic signs of pancreatitis in dogs

Hunched back
Repeated vomiting(either several times within a few hours or periodically over several days)
Pain or distention of the abdomen (dog appears uncomfortable or bloated)
Diarrhea
Loss of appetite
Dehydration
Weakness/lethargy
Fever

If your dog exhibits one of these signs, and only infrequently, monitor her. But if she exhibits multiple signs at once, and repeatedly, a call to the veterinarian quickly is vital.

Dehydration and pancreatitis in dogs

Dehydration is due to a greater fluid loss than fluid intake. Diarrhea or vomiting can cause dehydration, but those signs together will cause a greater fluid deficit and dehydration because the dogs fluid input (drinking) cannot keep up with the fluid losses. If the diarrhea becomes bloody, the condition worsens and the dehydration can become an emergency.

Other factors such as fever require increase fluid intake and can lead to dehydration along with other metabolic issues such as kidney disease, etc.

Blood in a dogs stool indicates a loos and significant inflammatory response requiring a veterinarians attention but it can be cause by a multitude of factors, from ulceration to parasites. Dehydration is a serious condition that can lead to death. It is an emergency and requires immediate veterinary care.

Any lethargic dog who is not drinking water or cannot hold water down should be suspect of dehydration and examined by a veterinarian. Dry mucous membranes (such as gums) may be a quick way of assessing dehydration but as always, when in doubt, consult with your veterinarian.

Causes of pancreatitis in dogs

There are a number of causes and risk factors that can bring on pancreatitis. Though often the attack appears seemingly out of the blue. Among them are:

A high-fat dietThis is a major cause of pancreatitis, especially for a dog who gets one large helping of fatty food in one sitting
A history of dietary indiscretion (a medical term for saying your dog will eat anything)
Obesity
Hypothyroidism (or other endocrine diseases)
Severe blunt trauma
Diabetes mellitus
Certain medications or other toxinsThese include cholinesterase inhibitors, calcium, potassium bromide, phenobarbital, l-asparaginase, estrogen, salicylates, azathioprine, thiazide diuretics, and vinca alkaloids.
There may, in some cases, be a genetic predisposition. Certain breeds or types of dogs have been associated with higher risks of pancreatitis such as Miniature Schnauzers and some of the smaller toy and terrier breeds.

More about those fats: Human food is especially dangerous, though even high-fat dog food may cause pancreatitis. So owner vigilance is particularly required around holidays and other festive occasionsthey can bring well-meaning guests who slip your buddy a fatty piece of lamb, or a tray of buttery cookies left within reach of an eager muzzle. In fact, the day after Thanksgiving is known for more than just Black Friday bargains. Its one of the busiest days of the year pancreatitis-related emergency vet visits.

Basically, if your dog is showing any signs of abdominal pain, the worst thing to do is feed him a fatty diet. This is one of many reasons that giving your dog table scraps, as tempting as it may be, is not advisable.

How does a vet diagnose pancreatitis in dogs?

Your dogs medical history
Blood tests to measure pancreatic enzymes
Physical examination including stomach, gums, heart, temperature
Radiographs or ultrasound, to rule out other causes
Fine needle aspiration of the pancreas

As the Merck Veterinary Manual notes, as with any disease, no test should be used in isolation for diagnosis, and all clinical findings should be used in conjunction to arrive at the most appropriate diagnosis.

Whats the difference between acute and chronic pancreatitis?

Acute PancreatitisAn acute attack of pancreatitis means it comes on suddenly, with no previous appearance of the condition before. It can become life threatening to other organs if the inflammation spreads.

Chronic PancreatitisA chronic condition is one that has developed over time, slowly, and often without symptoms. This condition can result from repeated bouts of acute pancreatitis.

Both acute and chronic forms can be either severe or mild, and both result in pain.

Treatment and management of pancreatitis in dogs

Theres no fancy treatment for acute pancreatitis. First and foremost, your dogs pain must be managed, and early intervention to prevent further complications is key. The most common treatment and management options are:

Intravenous (IV) fluid therapy in severe pancreatitis
Vigorous monitoring of a worsening condition
Antiemetic medication for vomiting (to prevent dehydration)
Resting the pancreas (withholding food and water for 24 hours)Long-term management includes:
Vigilant monitoring of fat intakeNo table scraps allowed!
Use of a prescription diet of gastrointestinal-supportive low-fat, or ultra-low fat, food.
Feed smaller, more frequent meals instead of one larger meal
Have amylase and lipase levels checked by a veterinarian regularly

Can supplements be used to prevent or manage pancreatitis in dogs?

It is important to reiterate that pancreatitis is a serious condition, so home remedies shouldnt be used in place of veterinary intervention. That said, some vets believe digestive enzyme supplements with pancreatin can help some (not all) dogs by reducing the work of the pancreas and inhibiting pancreatic secretion. These come in over-the-counter strength as well as prescription strength.

Fish oil may seem counterintuitive at first, because of its high fat content, but it can actually help lower blood lipid levels. Studies suggest a high level of fish oil (about 1,000 mg. per 10 pounds of body weight for dog with high lipid levels; about half that amount for dogs with normal levels) is helpful to dogs with acute pancreatitis. When supplementing with fish oil, also supplement with 5 to 10 IU of vitamin E.

There have been human studies suggesting that vitamin E (with selenium), vitamin C, beta-carotene, and methionine may help prevent pancreatitis. Conversely, another human study reveals that probiotics can make acute pancreatitis worse.

Always speak with your veterinarian before offering any supplements to your pet.

A canine researchers case study: her own dog

Caroline Coile, Ph.D is the Nutrition and Health columnist for AKC Family Dog and a two-time AKC Canine Health Foundation Award winner. Pancreatitis is a subject Coile knows well, not only as a professional canine researcher and writer, but because her dog, a Saluki named Beanie, went through the difficult and stressful experience. Here she shares her story:

Beanie, unlike most Salukis, loves to eat. But one day, after eating his very favorite treata flaky biscuithe vomited it up. He was standing with his back kind of hunched. I gently pressed on his abdomen, and he yelped. Out came the thermometer, which told me his temperature was 103 degrees. While I was calling the veterinarian, he vomited again, then lay down in a corner. We were in the car within minutes.

The veterinarian palpated his abdomen, which was definitely tender; took his temperature, which was still high; and drew blood. Beanie received pain medication, antibiotics, and intravenous fluids to combat fluid loss and came home with strict instructions not to eat that day. Eating anythingor even smelling foodcould have caused his pancreas to secrete enzymes and slow its healing. He could lick ice cubes, and then drink a bit of water.

The next day, he was allowed to eat about six tiny meals of low-fat, high-carbohydrate food. This meant rice, potatoes, or pasta. Overcooking these starchy foods makes them easier to digest. We would boil one cup of white rice (not instant rice) in four cups of water for 30 minutes to make a rice porridge called congee. We gradually added in protein sources, such as skinless chicken breast, low-fat cottage cheese, or boiled hamburger meat. When feeding a dog with pancreatitis, its important to cook all the food even if you normally feed a raw diet. Because the dogs gut is compromised, its necessary to remove fat and destroy bacteria.

After a week, Beanie progressed to a veterinary prescription diet for dogs with pancreatitis. He hated it. Many dogs with a history of acute pancreatitis must be on a special diet for the rest of their lives. If they dont like the pancreatitis diet, a low-fat weight loss diet often works just as well. Since obese dogs are more prone to pancreatitis, they need to lose weight anyway. Even if a high-fat meal didnt cause the initial bout, it can trigger a recurrence once the dog has had pancreatitis.

After a month, Beanie was able to gradually transition back to his old diet, minus the high-fat treats. Eventually, he even got his breakfast biscuitsbut no more butter. He never had another bout of pancreatitis.

The Take-Away

As the Canine Journal puts it, pancreatitis is like that relative that just wont leave: Even when theyre gone, the thought of their return hovers in the back of your mind. Unfortunately, once a dog has had a bout of pancreatitis, the chance of recurrence is high. You best defense against a repeat appearance of this unwelcome intruder is a two-pronged approach: Be on the look-out for the warning signs and control the things you can. Dont let your dog become obese (exercise is good for both of you), follow your vets feeding instructions strictly, and, when relevant, administer your dogs medication faithfully.

Mild cases of pancreatitis usually have a good prognosis. Severe cases have a more guarded prognosis, due to the potential for systemic complications. But as a vigilant, responsible, and most of all, knowledgeable dog owner, you now know what you can do to reduce the risk of pancreatitis, how to recognize it if it does strike, and how to manage it going forward.

Pancreatitis Symptoms: 11 Natural Ways to Prevent & Manage

Every year in the United States 210,000 people are admitted to hospitals with acute pancreatitis and 56,000 people are hospitalized each year due to chronic pancreatitis. This is a serious condition that can result in death if not treated properly and promptly. (1, 2)

The symptoms of pancreatitis depend on whether it is an acute or chronic case. Acute cases come on rapidly and can be the result of heavy drinking, gallstones or even blunt force trauma from an accident. Acute pancreatitis can be life-threatening, but with proper medical intervention and treatment the majority of people recover. However, recurrences can happen and it is possible for acute pancreatitis to become chronic.

Chronic cases develop more slowly and last a lifetime. This type can be the result of alcohol abuse, hereditary, certain prescription medications and even a deficiency in key nutrients. With chronic pancreatitis, there is physical scarring of the pancreas that can put you at a greater risk for developing diabetes, digestive disorders and even pancreatic cancer.

Diagnosing this condition requires a thorough examination and often multiple tests. The severity and the type will determine the course of action. For acute cases, a few days on clear liquids may resolve the problem, while more severe cases may require surgical intervention. For chronic pancreatitis, adjusting the diet and finding ways to manage the pain and discomfort is typical. However, antibiotics, IV hydration and nutritional support may be required.

Natural treatments can help with pancreatitissymptoms and may help prevent future episodes. And there are even some natural treatments that may help protect against pancreatic cancer.

What Is Pancreatitis?

Pancreatitis is an inflammation of the pancreas, which is a small organ tucked in the upper abdomen behind the stomach and in front of the spine. The pancreas is responsible for converting food to fuel, aiding in digestion by producing essential enzymes to break down fats and carbohydrates and creating two vital hormones, insulin and glucagon. (3)

There are two main types of pancreatitis: acute and chronic.

Acute: Acute pancreatitis symptoms come on suddenly and may last only a few days. The enzymes that are normally released remain in the pancreas, causing it to become inflamed and swollen. This slows digestion, causes pain and is associated with some severe complications that can become life-threatening. (4)

Chronic: This form is incurable. The severity and frequency of chronic pancreatitis symptoms vary from person to person. Worsening symptoms are often linked to eating a large high-fat meal or drinking alcohol. As the disease continues to create scar tissue and damage the pancreas, the risk for certain conditions like diabetes and pancreatic cancer increases. In addition, the body can start to have a difficult time processing and absorbing nutrients causing vitamin deficiencies.

More rare forms of this disease include childhood pancreatitis and autoimmune pancreatitis.

Childhood Pancreatitis: This condition is considered fairly rare and is most often found in children with cystic fibrosis or after a physical trauma. In some cases, the anatomy of the ducts in the liver or pancreas may cause this disease in children. Anti-seizure medications, certain antibiotics and chemotherapy may also cause childhood pancreatitis. However, in nearly one-third of cases a cause will not be identified. (6)

Autoimmune Pancreatitis: Sharing many of the same symptoms as both chronic and acute, here the inflammation is caused by the bodys immune system attacking the pancreas directly. This condition is broken into two types, Type 1 can affect multiple organs while Type 2 affects only the pancreas. Autoimmune pancreatitis is rare and newly-recognized disease that can be misdiagnosed as pancreatic cancer. (7)

A Note About Pancreatic Cancer

Because of the location of the pancreas, pancreatic cancer is often not diagnosed until late stages when it begins to spread to other organs. If you have been diagnosed with any form of pancreatitis and experience any of the symptoms below, please consult with your doctor immediately about your concerns. Chronic pancreatitis is considered a risk factor for this cancer. (8)

New diagnosis of diabetes
Unintended weight loss
Weight loss and diabetes co-occurring
Jaundice
Pain in the upper abdomen
Loss of appetite
Depression
Blood clots
Fatigue

Pancreatitis Signs & Symptoms

Pancreatitis symptoms vary from person to person, and whether it is acute or chronic.

Acute Pancreatitis Symptoms: (9, 10)

Swollen and tender abdomen
Upper abdominal pain
Nausea and/or vomiting
Rapid pulse
Pain that worsens after a high-fat meal
Pain may be worse when lying flat on the back
Fever
Difficulty breathing
Weakness
Shock

Chronic Pancreatitis Symptoms: (11, 12)

Nausea and/or vomiting
Weight loss
Diarrhea
Digestive upset
Oily or fatty foul-smelling stools that float
Clay-colored or pale stools
Deep abdominal pain and tenderness that radiates to the back
Glucose intolerance

Causes & Risk Factors

Pancreatitis occurs when digestive enzymes become activated while in the pancreas, irritating the cells, causing inflammation and scarring. There are a number recognized causes for pancreatitis including: (13)

Alcohol use and abuse. Long-term or a single binge can inflame the pancreas.
Gallstones
Surgery of the abdomen, heart or lungs where the blood supply to the pancreas is temporarily cut off.
Certain medications including azathioprine, sulfonamides, corticosteroids, nonsteroidal anti-inflammatory drugs (NSAIDs), antibiotics
Cigarette smoking.
Cystic Fibrosis
Family history of pancreatitis
High levels of calcium in the blood
High triglyceride levels in the blood
Infection like the mumps, hepatitis, rubella, Epstein Barr or cytomegalovirus
Blunt force trauma to the abdomen
Pancreatic cancer
Deficiency in nutrients, including A, C, E, selenium and carotenoids

The following conditions indicate a higher risk for developing pancreatitis symptoms:

Biliary tract disease
Binge alcohol use
Chronic alcohol abuse
Recent surgery
Family history of high triglycerides
Being 35 to 64 years old
Smoking
Being African-American

Conventional Treatments

There is no single test that can detect pancreatitis. When symptoms arise, you doctor will order a variety of tests that may include:

Blood tests to check for elevated levels of pancreatic enzymes.
Stool tests to measure levels of fat that may suggest the digestive system isnt absorbing fats as needed.
CT scan to look for the level of inflammation and to identify gallstones.
Abdominal ultrasound to look at the inflammation in the pancreas and gallstones.
Endoscopic ultrasound to look for blockages in pancreatic or bile ducts and surrounding inflammation.
MRI to identify abnormalities in the pancreas, ducts and gallbladder.

Once diagnosed, treating pancreatitis requires medical intervention as complications can occur. Mild cases of acute pancreatitis may go away without treatment, but severe acute cases can cause life-threatening complications and require hospitalization. (14)

Treatment protocols will be determined based on the type, the symptoms that are presenting, and the severity of symptoms. For acute cases, once hospitalized, fasting will provide the pancreas the opportunity to recover. Once the inflammation is under control, clear liquids and bland foods will be introduced. If inflammation persists, a feeding tube may be required to ensure that the patient is receiving adequate nutrition.

Pain, sometimes severe, is common and treatment for both acute and chronic forms often includes prescription pain medications.

To prevent dehydration, patients are often provided fluids through an IV.
If necessary, a surgical procedure may be required to remove obstructions.
Enzymes may be prescribed to improve digestion and nutrient absorption.
Ongoing treatment will include recommendations for small low-fat meals that are nutrient-dense.

Research shows that treatment plans differ depending on many factors, including whether pancreatitis is hereditary or acquired. (15)

11 Natural Ways to Prevent & Manage Pancreatitis Symptoms

A severe pancreatitis attack can be life-threatening; seek emergency medical attention as quickly as possible. Chronic pancreatitis symptoms often can be managed through diet and lifestyle changes. Also, if youre at-risk for pancreatitis, making some of these changes may help prevent the development of pancreatitis.

Improve your diet.
Try alternative therapies for pain.
Address nutrient deficiencies.
Supplement with vitamins A, C, D, E and K.
Boost omega-3 fatty acids.
Add a probiotic supplement to your diet.
Drink green tea.
Add a rhodiola supplement to your diet.
Try a reishi mushroom supplement.
Try grape seed extract.
Include foods high in glutamine in your diet.

1. Improve Your Diet. Diet plays a huge role in the development of pancreatitis, as well as the severity of symptoms and recovery. Follow the food recommendations below to help prevent pancreatitis. (16)

Foods to Avoid:

Eliminate all suspected food allergens including dairy, soy, wheat, corn, food preservatives and chemical food additives.
Eliminate all stimulants including caffeine, alcohol and tobacco.
Dramatically reduce or eliminate all trans-fatty acids in the diet.

Foods to Enjoy:

Focus on small, low-fat meals that emphasize fresh fruits, vegetables, lean proteins and whole grains, avoiding any foods that cause sensitivities or allergies.
Add healthy oils like olive oil and coconut oil.
Enjoy lean meats including grass-fed beef, organic poultry and cold-water fish.
Enjoy foods high in iron like spirulina, organic grass-fed beef liver, lentils and even dark chocolate.
Add more antioxidant-rich foods like cherries, blueberries, tomatoes and bell peppers to the diet.

2. Alternative Therapies for Pain. Pain, often severe, is common for both types of pancreatitis. The Mayo Clinic recommends the following alternative therapies to help ease the pain and discomfort. (17)

Meditation. In addition to easing pain, meditation fights depression and anxiety, lowers cortisol levels, improves mental performance and aids in recovery from chronic illnesses. (18)
Relaxation. The symptoms of pancreatitis cause discomfort, pain and often anxiety. Incorporating effective relaxation techniques like breathing exercises can help with the symptoms.
Acupuncture. Used for thousands of years for a wide array of physical and mental ailments, acupuncture is a safe and effective way to reduce chronic pain.
Yoga. In addition to pain, a recent study focusing on patients with chronic pancreatitis found that biweekly yoga for 12 weeks significantly improved stress, mood, appetite, overall feelings of well-being and alcohol dependence. (19)

3. Address Nutrient Deficiencies. According to research, there is a causal link between certain nutrient deficiencies and the development of pancreatitis. A simple blood test to determine if you are deficient in vitamins A, C or E as well as selenium and carotenoids can help you make wise dietary choices.

4. Vitamin Supplements: In a review of clinical trials published in the journal Advances in Nutrition, researchersfound that bioactive vitamins A, C, D, E and K all show promise for pancreatic cancer intervention. (20)

Vitamin A. Aids in pancreatic cancer prevention and is an essential nutrient for strong bones and immune function. Incorporate plenty of vitamin A-rich foods like beef liver, carrots and sweet potatoes into your diet.
Vitamin C. Slows tumor growth. Take 16 milligrams daily, but never take a vitamin C supplement and vitamin B12 supplement together as they affect each others absorption. If diarrhea occurs, back off until tolerated. Include vitamin C-rich foods that you tolerate well like red bell peppers, black currants, guava, and even broccoli in your diet.
Vitamin D. Shows anti-proliferative effects and repression of cancer cells in the pancreas and, more importantly, a study has found that it reduces inflammation and fibrosis in pancreatitis. (21) With pancreatitis, try to get 1530 minutes each day of sunshine, without sunscreen, to increase vitamin D levels in your body. In addition, focus on cold-water fish like halibut, mackerel and salmon in your diet.
Vitamin E. Shown to inhibit tumor cell growth and helps protect against heart disease. A high-quality vitamin E or, even better, foods like sunflower seeds, almonds and hazelnuts are recommended.
Vitamin K. Shown to inhibit pancreatic tumor cells, which is imperative for those with chronic pancreatitis. If well-tolerated, aim for 300 micrograms of vitamin K through organic foods like dandelion greens, mustard greens or Swiss chard.

5. Omega-3 Fatty Acids: Adding 1 to 2 tablespoons each day of a high-quality omega-3 fatty acid supplement is shown to reduce inflammation and improve immunity. In a meta-analysis published in the journal Nutrients, supplementation reduced the risk of mortality, infectious complications, and reduced the length of hospital stays for pancreatic patients. Authors encouraged large-scale multi-center randomized clinical trials. (22)

6. Probiotics. Adding a high-quality probiotic supplement for those with acute pancreatitis is shown to reduce intestinal inflammation, organ dysfunction and pancreatitis symptoms. Take 50 billion CFUs of probioticsdaily while symptoms persist for best results. The introduction of probiotics will also help rebuild health gut function during and after a round of antibiotics. (23, 24)

7. Green Tea. According to a recent study, regular consumption of green tea inhibits the development and the progression of pancreatic cancer. Researchers note that for women this results in a 32 percent reduction in pancreatic cancer risk, and they also note that a lower temperature of the tea is linked to its benefits. (25)

8. Rhodiola. This powerful adaptogen herb that has been shown to enhance energy and boost brain power has also been shown to improve kidney and pancreas function in rats. Take 350 milligrams to 500 milligrams of rhodiola twice a day for immune system support and to help with symptoms of pancreatitis. (26)

9. Reishi Mushroom. Used in holistic medicine practices, a recent study on chronic pancreatitis found that Ganoderma lucidum (the scientific name for reishi mushroom) increased the abundance of beneficial bacteria. And researchers noted this study shows potential for use of this mushroom as a possible therapy for chronic pancreatitis. Take 150 milligrams to 300 milligrams twice a day to help relieve inflammation while boosting immune system response. (27)

10. Grape Seed Extract. There are over 30 studies on grape seed extract and pancreatitis. Many of these studies cite its protective nature, particularly against cancer cells. Also noted is its anti-inflammatory effect and ability to fight against oxidative stress. Take 100 milligrams to 300 milligrams daily of a high-quality supplement. (28)

11. Glutamine. According to a study published in the journal Pancreatology, glutamine is associated with a significant reduction in the length of hospital stays and a decrease in complications for patients with acute pancreatitis. Add three servings of foods rich in L-glutamine like bone broth, grass-fed beef and cottage cheese, aiming for a total of 812 grams each day. (29)

A special note on Ghrelin, Leptin and Melatonin. These three hormones are noted in research to significantly reduce the severity of pancreatitis symptoms and protect pancreatic tissue from inflammatory damage. Learning how to improve your levels of ghrelin and leptin can be helpful. Resist restricting calories, get plenty of sleep and manage stress, avoid processed foods and eat plenty of protein to optimize your levels. (30)

Precautions

Acute pancreatitis can be life-threatening. Seek medical attention when symptoms present.
Chronic pancreatitis is associated with an increased risk for developing diabetes and pancreatic cancer.
Malnutrition is possible with both acute and chronic forms.
A damaged pancreas is vulnerable to bacteria and infection; antibiotics and surgery may be required.
Acute pancreatitis can cause fluid and debris to develop pockets in the pancreas causing internal bleeding and infection.
Repeated episodes of acute pancreatitis can lead to chronic pancreatitis.

Key Points

Chronic pancreatitis is incurable; managing pancreatitis symptoms, including pain, through diet and natural treatments is recommended.
Acute pancreatitis may come on suddenly. While it can resolve in a few days, it can also cause complications that are life-threatening.
Recognized causes of pancreatitis include: heavy alcohol use, gallstones, genetics, smoking, blunt force trauma or injury to the abdomen, and certain nutrient deficiencies.
Symptoms of acute pancreatitis include: nausea and/or vomiting, abdominal pain that radiates to the back, fever and an elevated pulse rate.
Symptoms of chronic pancreatitis include: unintended weight loss, new diagnosis of diabetes, diarrhea, oily foul-smelling stools and abdominal pain.
Diagnosis often requires multiple laboratory and imaging tests; a delayed diagnosis complicates treatment and therapy.
Chronic pancreatitis increases the risk for pancreatic cancer and diabetes.
IV fluids, pain medications, antibiotics, enzyme supplements and surgery may be required.

11 Natural Ways to Prevent & Manage Pancreatitis Symptoms