In-depth

Symptoms

Abdominal pain

Find out what causes different types of abdominal pain.

Rectal bleeding

Finding blood in your stool can be alarming. While the cause of rectal bleeding often isn't serious, see a doctor to have this symptom evaluated.

Tests and diagnosis

Has your doctor recommended a flexible sigmoidoscopy exam? Here's what you need to know about preparation and the exam itself.

Needle biopsy

Find out what to expect during a needle biopsy.

Jun. 12, 2012

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