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If you’re experiencing severe abdominal pain, fever, or heavy bleeding, call 911.

Colitis

Colitis Explained

Ulcerative colitis is a form of inflammatory bowel disease in which the immune system attacks the colon lining, causing continuous inflammation starting in the rectum and extending upward. It can lead to diarrhea, rectal bleeding, abdominal pain, and urgency, with periods of flares and remission. Other types of colitis include infectious, ischemic, microscopic, and medication-related forms.

Symptoms

Symptoms often include diarrhea, urgency, blood or mucus in stool, and abdominal cramping, with severity ranging from mild to severe.

Symptoms include:
Diarrhea, often with blood or mucus
Urgency and increased stool frequency
Abdominal pain or cramping
Fatigue and weight loss
In severe cases, fever, anemia, or dehydration

When to call

Call the office if you have persistent diarrhea, rectal bleeding, urgency, or abdominal pain, especially with known colitis or a family history of IBD. Report flares early so treatment can be adjusted.

Seek emergency care for severe abdominal pain, high fever, profuse bleeding, signs of dehydration, or a sudden worsening of symptoms, as severe colitis can lead to serious complications.

Evaluation & Tests
Management & Treatment

Evaluation includes blood and stool tests and almost always colonoscopy with biopsies to confirm inflammation pattern, exclude infection, and distinguish ulcerative colitis from other types of colitis.

History of symptom duration, bleeding, and extra-intestinal symptoms (joint pain, skin issues)
Blood tests for anemia, inflammation, and other markers
Stool tests to rule out infections and check for inflammation markers
Colonoscopy with biopsies to define extent and severity
Imaging in severe or complicated cases

Treatment aims to control inflammation, relieve symptoms, and prevent complications. It may include aminosalicylates, steroids, immunomodulators, biologic therapies, and, in some cases, surgery.

Medications tailored to disease severity and location (rectum-only vs extensive)
Use of rectal therapies (suppositories, enemas) for distal disease
Monitoring labs and colonoscopy for response and cancer surveillance
Nutrition support and attention to bone health and mental health
Surgical consultation for severe, refractory, or dysplasia/cancer cases
This information is for general educational purposes only and is not a diagnosis or personalized medical advice. It does not replace a visit with your own healthcare provider. Always follow the specific recommendations given by your medical team. If you have urgent or worsening symptoms, contact your provider or seek emergency care right away.

At-a-glance

Abdominal painDiarrheaRectal bleedingWeight loss / anemia

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Information on this website is for education only and not a substitute for medical advice.

If you’re experiencing an emergency, call 911.
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