This injury most often occurs in runners and in middle-aged people who play sports only on weekends.
Disease
Achilles tendon rupture
An Achilles tendon rupture is an injury that is usually painful and likely to affect your ability to walk. Surgical repair is sometimes necessary.
Disease
Adnexal tumors and masses
Learn about symptoms, diagnosis and treatment of these growths that occur in and around the ovaries and fallopian tubes.
Disease
Atrial tachycardia
This type of fast heartbeat may occur after heart surgery or during pregnancy. But infections may trigger it too. Learn how it's diagnosed and treated.
This most common type of supraventricular tachycardia, a type of irregular heartbeat, tends to occur in young women. Know the symptoms and treatment.
Disease
Benign adrenal tumors
Most of these tumors need no treatment, but some do. Learn about diagnosis and treatment options.
Disease
Benign peripheral nerve tumor
Learn more about the different types of tumors that grow on or around the nerves that link to the brain and spinal cord.
Disease
Black hairy tongue
This condition gives the tongue a dark, furry look. It results from a buildup of dead skin cells on the many tiny, rounded bumps on the tongue's surface.
Disease
Blocked tear duct
Watery, irritated eyes may occur when your tears can't drain normally. Learn about this common eye condition that affects newborns and sometimes, adults.
Disease
Brain tumor
Find out more about the different types, signs, symptoms and causes of brain tumors, which are growths of cells in the brain.
Disease
Broken toe
Pain when wearing shoes and difficulty walking can signal a broken toe — so see your health care provider to help it heal and ease pain.
Disease
Carcinoid tumors
Learn about these slow-growing cancers that usually begin in the digestive system or in the lungs. Treatments include peptide receptor radionuclide therapy.