In-depth

Abdominal pain

Find out what causes different types of abdominal pain.

Coughing up blood

Coughing up blood can indicate a variety of lung conditions, ranging from mild to life-threatening.

Diarrhea

Here's information about common causes of diarrhea and when to see your doctor.

Fatigue

Fatigue can signal many things. Here are some tips to help you decipher why you're wiped out and to regain your energy.

Headache

Most headaches aren't caused by a serious illness, but some could be a sign of a life-threatening condition.

Muscle pain

Muscle pain can occur just about anywhere in your body, and there are lots of potential causes.

Nosebleeds

Swollen lymph nodes

Swollen lymph nodes usually indicate an infection, particularly in children. However, there are many causes, ranging from the common cold to cancer.

Mar. 26, 2013

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