Diseases and Conditions

Ulcerative colitis

Symptoms

Ulcerative colitis symptoms can vary, depending on the severity of inflammation and where it occurs. Signs and symptoms may include:

  • Diarrhea, often with blood or pus
  • Abdominal pain and cramping
  • Rectal pain
  • Rectal bleeding — passing small amount of blood with stool
  • Urgency to defecate
  • Inability to defecate despite urgency
  • Weight loss
  • Fatigue
  • Fever
  • In children, failure to grow

Most people with ulcerative colitis have mild to moderate symptoms. The course of ulcerative colitis may vary, with some people having long periods of remission.

Types

Doctors often classify ulcerative colitis according to its location. Types of ulcerative colitis include:

  • Ulcerative proctitis. Inflammation is confined to the area closest to the anus (rectum), and rectal bleeding may be the only sign of the disease.
  • Proctosigmoiditis. Inflammation involves the rectum and sigmoid colon — the lower end of the colon. Signs and symptoms include bloody diarrhea, abdominal cramps and pain, and an inability to move the bowels in spite of the urge to do so (tenesmus).
  • Left-sided colitis. Inflammation extends from the rectum up through the sigmoid and descending colon. Signs and symptoms include bloody diarrhea, abdominal cramping and pain on the left side, and urgency to defecate.
  • Pancolitis. This type often affects the entire colon and causes bouts of bloody diarrhea that may be severe, abdominal cramps and pain, fatigue, and significant weight loss.

When to see a doctor

See your doctor if you experience a persistent change in your bowel habits or if you have signs and symptoms such as:

  • Abdominal pain
  • Blood in your stool
  • Ongoing diarrhea that doesn't respond to over-the-counter medications
  • Diarrhea that awakens you from sleep
  • An unexplained fever lasting more than a day or two

Although ulcerative colitis usually isn't fatal, it's a serious disease that, in some cases, may cause life-threatening complications.

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