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Medicine use while breastfeeding is common. However, some medicines may have harmful effects on a baby.

Learn how magnetoencephalography helps your care team locate key structures in your brain and plan surgery for epilepsy and brain tumors.

Swelling and irritation that affects one or both testicles.

A high level of the electrolyte potassium in the blood. Potassium is a chemical that helps nerve and muscle cells, including those in the heart, work.

An irregular narrowing of a blood vessel, duct, canal or tube.

A condition in which a newborn's intestines stick out of the belly at birth.

Swelling or puffiness around the eye area.

The sudden loss of all heart activity due to an irregular heartbeat.

Sensitivity to gluten, a protein found in wheat, barley and rye.

An involuntary eye movement that may cause the eye to rapidly move from side to side, up and down, or in a circle, and may slightly blur vision.

A condition that prevents absorption of nutrients mostly through the small intestine.

Blood that becomes thick or clumped and clogs a blood vessel.

A condition in which the opening between the stomach and small intestine thickens, blocking food from entering the stomach.

A condition in which a hole forms in a digestive organ or tract.

Seizures and coma that happen during pregnancy or soon after childbirth.

A slow-growing type of non-Hodgkin lymphoma.

Cancer that starts in the body's germ-fighting system, called the lymphatic system.

A fast-growing, common cancer of the body's germ- and disease-fighting system, called the lymphatic system.

A pregnancy complication that involves high blood pressure.

A serious complication of high blood pressure during pregnancy.