Staying healthy
Learning Center
Male infertility
Male infertility often plays a role when couples have trouble conceiving. Find out what causes male infertility and available options for treatment.
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.
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.
Scrotal masses
Lumps in the scrotum have various causes. Even painless lumps should be checked promptly by a health care professional.
Prostatitis
Learn about tests and treatments for disorders of the prostate gland that cause pain, difficult or painful urination, and other symptoms.
Frostbite
Learn how to prevent cold injury to the skin when outdoors in freezing temperatures and how to treat and recover from frostbite.
Brain tumor
Find out more about the different types, signs, symptoms and causes of brain tumors, which are growths of cells in the brain.
Enlarged breasts in men (gynecomastia)
Learn how an imbalance of the hormones estrogen and testosterone can cause breast tissue swelling in boys or men.
Peyronie disease
Understand what causes bent and painful erections and learn what treatments are available.
Chickenpox
Learn more about preventing this once-common childhood illness. Also, find out how to recognize and manage it.
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