You normally lose about 10 cups (2.4 liters) of water every day — much more during exercise or illness. Learn how to stay hydrated.


Abdominal pain

Find out what causes different types of abdominal pain.

Nausea and vomiting

Unexplained weight loss

Tests and diagnosis

CT scan

Flexible sigmoidoscopy

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

June 18, 2016
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