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Disease

Acanthosis nigricans

Learn about the causes of and treatment for this condition that causes dark, velvety patches in folds of the skin.
Disease

Common warts

Find out tips for preventing and dealing with this common skin condition that causes small, rough growths on your fingers and hands.
Disease

Adult attention-deficit/hyperactivity disorder (ADHD)

This mental health disorder includes a combination of persistent problems, such as difficulty paying attention, hyperactivity and impulsive behavior.
Disease

Anorexia nervosa

People with this eating disorder have a very low body weight, an intense fear of gaining weight and a flawed way of seeing their body.
Disease

Adjustment disorders

These are unhealthy reactions to stress that involve emotions and behavior. The response to stress is much more intense than would usually be expected.
Disease

Synovial sarcoma

This rare type of cancer tends to occur near large joints, mainly the knee, in young adults. The main treatment is surgery.
Disease

Achilles tendinitis

This injury most often occurs in runners and in middle-aged people who play sports only on weekends.
Disease

Morton neuroma

Learn how this painful foot condition is diagnosed and treated.
Disease

Trigger finger

In this condition, a finger gets stuck in a bent position and may straighten suddenly with a snap. It happens most often in women over the age of 50.
Disease

Pulmonary atresia

This life-threatening heart condition that's present at birth changes the way blood travels from the heart to the rest of the body.
Disease

Syphilis

Understand how this infectious disease spreads, what you can do to prevent it and how it's treated.
Disease

Patent foramen ovale

Learn more about the causes and complications of this condition in which a hole in the heart doesn't close the way it should after birth.

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