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Prevea Health

Crohn's and Colitis


Crohn's disease and ulcerative colitis are inflammatory bowel diseases (IBD). They cause inflammation of the lining of your digestive tract, which can lead to abdominal pain, severe diarrhea and even malnutrition. The inflammation caused by Crohn's disease can affect all layers and any part of the bowel. Ulcerative colitis only affects the large intestine.
Resources for Crohn's and Colitis
Crohn's & Colitis Foundation of America


Signs and symptoms are similar for both. They can range from mild to severe and may develop gradually or come on suddenly, without warning. You may also have periods of time when you have no signs or symptoms (otherwise known as remission).
  • Diarrhea
  • Abdominal pain and cramping
  • Blood in your stool
  • Ulcers in intestinal walls and sometimes in your mouth (like canker sores)
  • Reduced appetite and weight loss
  • Fever
  • Fatigue
  • Arthritis
  • Eye inflammation
  • Skin disorders
  • Inflammation of the liver or bile ducts
  • Delayed growth or sexual development, in children 


The exact cause remains unknown. Previously, diet and stress were suspected, but now doctors know that although these factors may aggravate these diseases, they don't cause it. Researchers believe that a number of factors, such as heredity and a malfunctioning immune system play a role.
  • Immune system. It's possible that a virus or bacterium may be the cause. When your immune system tries to fight off the invading microorganism, the digestive tract becomes inflamed. Currently, many investigators believe that some people develop either disease because of an abnormal immune response to bacteria that normally live in the intestine.
  • Heredity. Mutations in a gene called NOD2 tend to occur frequently in people with either disease and seem to be associated with a higher likelihood of needing surgery. Scientists continue to search for other genetic mutations that might play a role.


Your doctor will likely diagnose the condition only after ruling out other possible causes for your signs and symptoms, including irritable bowel syndrome (IBS), diverticulitis and colon cancer. To help confirm a diagnosis, you may have one or more of the following tests and procedures:
  • Blood tests
  • Fecal occult blood test (FOBT)
  • Colonoscopy
  • Flexible sigmoidoscopy
  • Small bowel imaging
  • Computerized tomography (CT)
  • Capsule endoscopy


Treatment may include medications, surgery, nutrition supplementation or a combination of these options. The goals of treatment are to control inflammation, correct nutritional deficiencies, and relieve symptoms such as abdominal pain, diarrhea and rectal bleeding. Treatment depends on its location, severity and complications.

Treatment can help control symptoms and make recurrences less frequent, but no cure exists. Someone may need long-lasting medical care and regular doctor visits to monitor the condition. Some people have long periods—sometimes years—of remission when they are free of symptoms, and predicting when a remission may occur or when symptoms will return is not possible. This changing pattern of these diseases makes it difficult to be certain a treatment has helped.

Despite possible hospitalizations and the need to take medication for long periods of time, most people live full lives—balancing families, careers and activities.

Daily Management:


Diet and Nutrition

  • Ask your doctor about extra vitamins and minerals you may need.
  • Eat small amounts of food throughout the day.
  • Drink lots of water (drink small amounts often throughout the day).
  • Avoid high-fiber foods (bran, beans, nuts, seeds and popcorn).
  • Avoid fatty, greasy or fried foods and sauces (butter, margarine and heavy cream).
  • If your body does not digest dairy foods well, limit dairy products. Try low-lactose cheeses, such as Swiss and cheddar, and an enzyme product, such as Lactaid, to help break down lactose.
  • Avoid foods that you know cause gas, such as beans, spicy food, cabbage, broccoli, cauliflower, raw fruit juices and fruits -- especially citrus fruits.
  • People who have a blockage of the intestines may need to avoid raw fruits and vegetables and other high-fiber foods.
  • Take iron supplements (if you are anemic).
  • Take calcium and vitamin D supplements to help keep your bones strong.
  • Take Vitamin B12 to prevent anemia.

Reduce stress with the following:

  • Exercise
  • Biofeedback. This stress-reduction technique helps you reduce muscle tension and slow your heart rate with the help of a feedback machine. You're then taught how to produce these changes yourself. The goal is to help you enter a relaxed state so that you can cope more easily with stress. Biofeedback is usually taught in hospitals and medical centers.
  • Regular relaxation and breathing exercises like yoga and meditation
  • Hypnosis
  • Set aside time every day for any activity you find relaxing — listening to music, reading, playing computer games or just soaking in a warm bath.


  • Fiber supplements may help your symptoms. You can buy psyllium powder (Metamucil) or methylcellulose (Citrucel) without a prescription.
  • Aminosalicylates (5-ASAs) are used to help reduce inflammation in the lining of the intestine.
  • Corticosteroids are an anti-inflammatory used to decrease inflammation in both the intestine and throughout the body. They are used for short term control of symptoms during acute flare-ups of IBD.
  • Medicines such as azathioprine or 6-mercaptopurine quiet the immune system's reaction.
  • Antibiotics may be prescribed for abscesses or fistulas.
  • Biologic therapy is used to treat patients with severe cases that don’t respond to any other types of medication. Medicines in this group include infliximab (Remicade) and adalimumab (Humira), certolizumab (Cimzia), natalizumab (Tysabri), Vedolizumab (Entyvio), Ustekinumab (Stelara) and Tofacitinib (Xeljanz).
  • Take acetaminophen (Tylenol) for mild pain.
  • Drugs such as aspirin, ibuprofen (Advil, Motrin), or naproxen (Aleve, Naprosyn) may make your symptoms worse.


If medicines do not work, bowel resection may be needed to remove a damaged or diseased part of the intestine or to drain an abscess. However, removing the diseased portion of the intestine does not cure the condition.

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