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I have UC with bloody bowels. Can this lead to colon cancer?

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Patient's Query

Hello doctor,

I am 28 and was diagnosed with ulcerative colitis six months ago, but despite being on Mesalamine, I am still having eight to 10 bloody bowel movements daily with severe cramping and urgency.

The symptoms are so bad that I can barely leave my apartment, and I have lost 25 pounds because eating seems to trigger more pain.

My gastroenterologist mentioned stepping up to stronger medications like steroids or immunosuppressants. Can you give your suggestions on:

  1. Should I be concerned about the long-term risks of these drugs, or is controlling the inflammation more important right now?

  2. Could this lead to colon cancer if not treated aggressively?

Please suggest.

Hello,

Welcome to icliniq.com.

I understand your concern.

I am really sorry you are going through this. So what you are describing sounds like a severe flare of ulcerative colitis, and it makes sense that your doctor is considering stronger treatment.

Mesalamine is usually effective in mild disease, but with persistent bloody diarrhea, severe cramping, weight loss, and urgency, escalation is often necessary.

In the short term, corticosteroids are commonly used to rapidly control inflammation, but they are not meant for long-term maintenance because of side effects such as bone loss, diabetes, infections, and weight gain.

For long-term control, immunosuppressants (like Azathioprine) or biologics (such as Infliximab, Adalimumab, Vedolizumab, or Ustekinumab) are considered; while these drugs do carry risks like infection or rare malignancies, the danger of leaving your inflammation uncontrolled is much greater.

Ongoing, uncontrolled colitis not only causes debilitating symptoms and malnutrition but also increases your risk of hospitalization, surgery, and, over time, colon cancer. In fact, the risk of colorectal cancer rises in people with ulcerative colitis if the disease has been present for many years and remains poorly controlled.

The key priority right now is to get your inflammation under control quickly and safely. Once stable, your gastroenterologist can tailor a long-term maintenance plan that balances risks and quality of life.

Regular colonoscopy surveillance will also help monitor cancer risk. In your situation, controlling the inflammation and preventing complications is more important than worrying about medication risks in the immediate term.

I hope this helps.

Thank you.

Answered byDr. Ashraf Ghani

Medically reviewed byiCliniq medical review team

Published At November 22, 2025
Reviewed AtNovember 22, 2025

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