Consumer health basics
Learning Center
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.
Ocular rosacea
Learn about symptoms, causes and treatments of ocular rosacea — an eye condition that often affects people who have skin rosacea.
Multiple sclerosis
This nervous system disorder causes a range of symptoms — and while there's no cure, it's possible to have long periods of remission.
Male infertility
Male infertility often plays a role when couples have trouble conceiving. Find out what causes male infertility and available options for treatment.
Male hypogonadism
This condition affects the ability of men's bodies to produce enough testosterone or enough sperm or both.
Male breast cancer
Breast cancer can affect anyone. Learn about the signs and symptoms of this cancer. Treatment most often involves surgery.
Low sperm count
Having a low sperm count can make conceiving a child difficult, but not necessarily impossible. Learn about possible causes and treatment.
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.
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.
Hydrocele
Find out more about the symptoms, causes and treatments for this swelling in the scrotum.
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