In-depth

Complications

Anemia during pregnancy: What you need to know

Definition

Iron deficiency in children

Wonder if your child is getting enough iron? Get the facts about iron deficiency in children.

Symptoms

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.

Shortness of breath

Shortness of breath can be frightening. Most of the time, a heart or lung condition is the cause.

Symptom Checker

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

Tachycardia

Tachycardia, a rapid heart rate, is caused by an abnormality in your heart's electrical impulses. Tachycardia can cause serious complications, including sudden cardiac arrest.

Tests and diagnosis

Colonoscopy

Hematocrit test

A hematocrit test shows what proportion of your blood is made up of red blood cells. Results may help your doctor diagnose certain diseases.

Hemoglobin test

Ultrasound

Upper endoscopy

Jan. 02, 2014