Fitness basics
Learning Center
Enlarged breasts in men (gynecomastia)
Learn how an imbalance of the hormones estrogen and testosterone can cause breast tissue swelling in boys or men.
Hemolytic uremic syndrome (HUS)
Damage to the small blood vessels in the kidneys can cause clots that clog the organ's filtering system. This can lead to life-threatening kidney failure.
Cervical cancer
Screening with Pap tests can reduce the risk of this cancer that begins in the cervix. Learn more about symptoms, causes, prevention and treatment.
Chronic pelvic pain
Ongoing pain in the pelvis can be a symptom of another disease or a condition in its own right. Learn how it's diagnosed and treated.
Premature ejaculation
Understand what may cause ejaculation to happen earlier than wanted during sex. Also learn how to treat and prevent it.
Heart failure
Learn about this chronic disease that needs lifelong management. Find out what treatments help you live longer and may even strengthen your heart.
Stage 4 prostate cancer
Find out about diagnosis and treatment of this cancer that has spread to the lymph nodes or other parts of the body.
Undescended testicle
Learn about causes, complications and treatment of this condition in which one or both testicles aren't in the usual place within the scrotum.
Pneumonia
Pneumonia — Learn about the symptoms, causes and treatment of this serious lung infection.
Hypospadias
Hypospadias is a birth defect in which the opening of the urethra is located on the underside of the penis instead of the tip. Learn about treatment.
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