Ulcerative colitis is a chronic disease of the colon, or large bowel. It causes inflammation and destruction of the tissue lining the colon.
Ulcerative colitis occurs when the lining of the colon is attacked by the body's immune system. It involves an autoimmune response, which means that the person's body produces antibodies against its own tissues. The disease usually starts at the rectum and involves entire sections of the colon. The attack may cause abscesses, or pus pockets, in the lining.
The cause of ulcerative colitis is unknown. People with ulcerative colitis have an autoimmune response that destroys the colon lining. However, it is not known whether the response is the cause or the result of ulcerative colitis. Many scientists believe that the immune response is triggered by a virus or bacteria.
Stress and dietary factors do not cause ulcerative colitis. However, they may worsen the symptoms when someone has the disease. Spicy foods and dairy products may trigger symptoms, for example.
As the colon lining breaks down, the person experiences abdominal pain. The pain is usually on the left side of the abdomen. It may improve after the person has a bowel movement. Bloody diarrhea is another common symptom. The person may have 10 to 20 bowel movements a day. The person may also have pain and cramping around the rectum.
Other common symptoms of ulcerative colitis include:
Ulcerative colitis can also cause problems in other parts of the body. These effects may include:
Diagnosis of ulcerative colitis begins with a medical history and physical exam. The healthcare provider may order tests, including:
There is no known way to prevent ulcerative colitis.
Ulcerative colitis can cause serious long-term effects, including:
Ulcerative colitis is not contagious and poses no risk to others.
Treatment of ulcerative colitis varies, depending on the intensity and location of the inflammation. The healthcare provider will work with the individual to control the inflammation. Treatment may include:
If these measures aren't successful in controlling the disease, surgery may be recommended. The entire colon and rectum may be removed. An ileostomy is done to empty the contents of the small bowel into a pouch. A newer procedure known as an ileoanal anastomosis leaves part of the rectum intact. Bowel waste is then passed out through the rectum.
Medicines used to treat ulcerative colitis may cause vomiting, lethargy, and allergic reactions. Surgery may cause bleeding, infection, and allergic reaction to anesthesia.
People with ulcerative colitis will have periods where the symptoms go away. Usually, however, the symptoms do return.
People with ulcerative colitis will have regular visits with the healthcare provider. The provider will order regular colonoscopy exams to monitor the disease. Any new or worsening symptoms should be reported to the healthcare provider.
Author:David J. Craner, MD
Date Written:
Editor:Crist, Gayle P., MS, BA
Edit Date:05/31/01
Reviewer:Eileen McLaughlin, RN, BSN
Date Reviewed:05/22/01
Professional Guide to Disease, Sixth Edition, Springhouse. Springhouse Publication, 1998.
Griffith, H. Winter. Instructions for Patients, Fifth Edition. Philadelphi, W.B. Saunders Company, 1994.