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Learning Center
Varicocele
Find out how this condition involving the enlargement of veins in the scrotum can affect sperm quality and production.
Enlarged breasts in men (gynecomastia)
Learn how an imbalance of the hormones estrogen and testosterone can cause breast tissue swelling in boys or men.
Premature ejaculation
Understand what may cause ejaculation to happen earlier than wanted during sex. Also learn how to treat and prevent it.
Klinefelter syndrome
This genetic disorder occurs when a male is born with an extra copy of the X chromosome and may result in low testosterone production and infertility.
Prostate cancer
Learn about detection, diagnostic approaches, treatment options and advances for prostate cancer, including robotic prostatectomy and current research.
Reye's syndrome
Learn more about the causes and treatment of Reye's syndrome, a rare but serious condition causing swelling in the liver and brain.
Retractile testicle
Find out about this condition that allows the testicle to move between the scrotum and groin.
Prostatitis
Learn about tests and treatments for disorders of the prostate gland that cause pain, difficult or painful urination, and other symptoms.
Scrotal masses
Lumps in the scrotum have various causes. Even painless lumps should be checked promptly by a health care professional.
Epididymitis
This inflammation of the coiled tube at the back of the testicle that stores and carries sperm is usually caused by a bacterial infection.
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