Fitness basics
Learning Center
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.
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.
Myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD)
Learn about the symptoms, diagnosis and treatments for this autoimmune disease that attacks nerve fibers in the body.
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.
Premature ejaculation
Understand what may cause ejaculation to happen earlier than wanted during sex. Also learn how to treat and prevent it.
Prostate cancer
Learn about detection, diagnostic approaches, treatment options and advances for prostate cancer, including robotic prostatectomy and current research.
Peyronie disease
Understand what causes bent and painful erections and learn what treatments are available.
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.
Low sperm count
Having a low sperm count can make conceiving a child difficult, but not necessarily impossible. Learn about possible causes and treatment.
Orchitis
This inflammation of one or both testicles can cause pain and infertility. It's usually caused by a bacterial infection or the mumps virus.
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