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Disease

Enlarged breasts in men (gynecomastia)

Learn how an imbalance of the hormones estrogen and testosterone can cause breast tissue swelling in boys or men.
Disease

Encopresis

If constipation causes stool to become impacted, liquid stool may leak out around the hard stool. Find out what causes this condition and ways to treat it.
Disease

Compulsive gambling

Also called gambling disorder, compulsive gambling is the uncontrollable urge to keep gambling despite the toll it takes on your life.
Disease

Functional neurologic disorder/conversion disorder

This disorder includes nervous system symptoms affecting movement or the senses that are not caused by medical disease. Treatment can help with recovery.
Disease

Post-traumatic stress disorder (PTSD)

This mental health condition, which is caused by being part of or witnessing a terrifying event, leads to symptoms that include flashbacks, nightmares and severe anxiety.
Disease

Allergies

Allergy symptoms can range from mild to severe, even life-threatening. Find out what treatments and prevention tips can help.
Disease

Klinefelter syndrome

In this condition, a genetic male has an extra X sex chromosome. This may affect the growth of testicles and result in low testosterone.
Disease

Thalassemia

Some forms of this inherited blood disorder usually show up before the age of 2. Often, they cause anemia. Worse forms of the disease require regular blood transfusions.
Disease

Norovirus infection

This highly contagious virus spreads through contaminated food, water or surfaces and causes vomiting and diarrhea. Learn ways to protect yourself.
Disease

Porphyria

This group of disorders results from a buildup of natural chemicals in the body that affect the nervous system and skin. Learn how to avoid symptom triggers.
Disease

Peutz-Jeghers syndrome

This inherited condition causes polyps to grow in the digestive tract and increases the risk of cancer. Regular screening helps reduce some risks.
Disease

Adrenoleukodystrophy

Find out about diagnosis and treatment of adrenoleukodystrophy — a hereditary disorder that affects the brain, nervous system and adrenal gland.
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