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What are the Signs and Symptoms?

About half of all patients with ulcerative colitis experience mild symptoms. Be sure to consult your doctor if you experience any of the following symptoms:

bowel movements become looser and more urgent
persistent diarrhea accompanied by abdominal pain and blood in the stool
stool is generally bloody
crampy abdominal pain

People suffering from ulcerative colitis often experience loss of appetite and may lose weight as a result. A feeling of low energy and fatigue is also common. Among younger children, ulcerative colitis may delay growth and development.

The symptoms of ulcerative colitis do tend to come and go, with fairly long periods in between flare-ups in which patients may experience no distress at all. These periods of remission can span months or even years, although symptoms do eventually return. The unpredictable course of ulcerative colitis may make it difficult for physicians to evaluate whether a particular course of treatment has been effective or not.

What are the Causes of Ulcerative Colitis? Who is Affected?

Although considerable progress has been made in IBD research, investigators do not yet know what causes this disease. Studies indicate that the inflammation in IBD involves a complex interaction of factors: the genes the person has inherited, the immune system, and something in the environment. Foreign substances (antigens) in the environment may be the direct cause of the inflammation, or they may stimulate the body's defenses to produce an inflammation that continues without control. Researchers believe that once the IBD patient's immune system is "turned on," it does not know how to properly "turn off" at the right time. As a result, inflammation damages the intestine and causes the symptoms of IBD. That is why the main goal of medical therapy is to help patients regulate their immune system better.

Research sponsored by CCFA has led many scientists to believe that ulcerative colitis may be the result of an interaction of a virus or bacterial infection of the colon and your body’s natural immune system response. Normally, your immune system will cause temporary inflammation to combat an illness or infection, and then the inflammation will be reduced as you regain health. In people with ulcerative colitis, however, this inflammation can persist long after your immune system should have finished its job.

Ulcerative colitis may affect as many as 700,000 Americans. Men and Women are equally likely to be affected, and most people are diagnosed in their mid-30s. The disease can occur at any age and older men are more likely to be diagnosed than older women.

While ulcerative colitis tends to run in families, researchers have been unable to establish a clear pattern of inheritance. Studies show that up to 20 percent of people with ulcerative colitis will also have a close relative with the disease.

Ulcerative Colitis, has seen a sharp increase throughout much of Europe in recent decades with higher incidence levels documented in northern and western parts of the continent. The disease can be extremely debilitating for patients and there is no solitary cause, although it is thought to be due to a combination of genetic and environmental factors.