my friend found blood in his stool and now in his seamen
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replied August 29th, 2010
Blood in the stool can result from both benign diseases (like hemorrhoids) or malignant diseases (like colon cancer or rectal cancer). Generally, colonoscopy is necessary to sort out the cause(s) of rectal bleeding.

Blood in the semen would be a very unusual sign of colorectal cancer.

Your friend should see both a GI doctor and a Urologist for these symptoms.

Sincerely/ Robert A. Wascher, MD, FACS

A landmark, evidence-based guide to a healthy cancer-prevention lifestyle, based on cutting-edge cancer research.
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