Colorectal Cancer Symptoms and Screening Options

Colorectal cancer may have no symptoms in its early stages. Persistent bowel habit changes, blood in stool, unexplained anaemia and unintentional weight loss should be evaluated.

Symptoms, causes and key details

These findings often have non-cancer causes too. Age, family history, previous polyps and inflammatory bowel disease affect screening decisions.

Assessment and practical next steps

Many international guidelines recommend screening average-risk adults from age 45; local programmes and personal risk may differ. Ask about stool tests and colonoscopy.

When is urgent help needed?

Heavy rectal bleeding, fainting or sudden severe abdominal pain require emergency care.

Frequently asked question

Is screening needed without symptoms?

Yes, precancerous polyps and early cancer may be silent.

This article provides general information, not a personal diagnosis or treatment.

Trusted information source: https://www.cdc.gov/colorectal-cancer/symptoms/index.html