In-depth

Risk factors

Pregnancy and obesity

Symptoms

Edema

Symptom Checker

Foot pain? Headache? Sore throat? Skin rash? Use the Symptom Checker to find out what's causing your symptom.

Tests and diagnosis

CT scan

MRI

MRI uses a magnetic field and radio waves to create detailed images of the organs and tissues within your body.

Ultrasound

Treatments and drugs

Warfarin side effects

Feb. 22, 2014