Stress basics
Learning Center
Peripheral neuropathy
Learn what may cause the prickling, tingling or numb sensations of nerve damage and how to prevent and treat this painful disorder.
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.
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.
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.
Keloid scar
Learn about how to prevent, remove or flatten these problematic raised scars that form over scars from acne, tattoos, piercing and other injuries.
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