Stress basics
Learning Center
Peyronie disease
Understand what causes bent and painful erections and learn what treatments are available.
Pericarditis
Inflammation of the tissue surrounding the heart can cause sharp chest pain and other symptoms. Know how pericarditis is diagnosed and treated.
Panic attacks and panic disorder
Learn about effective treatment for sudden episodes of intense fear that trigger severe physical reactions when there is no real danger or apparent cause.
Pancreatic cysts
Most pancreatic cysts are benign, but some types are cancerous. Find out about symptoms, causes and treatment of cysts in the pancreas.
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.
Narcolepsy
Learn more about this sleep disorder that causes periods of involuntary sleep, sleep paralysis and early rapid eye movement (REM) sleep.
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.
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