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Learning Center
Encephalitis
Learn about this potentially fatal condition associated with inflammation of the brain and what you can do to prevent it.
Undescended testicle
Learn about causes, complications and treatment of this condition in which one or both testicles aren't in the usual place within the scrotum.
Coronavirus disease 2019 (COVID-19)
Coronavirus disease 2019 (COVID-19) is an illness caused by the virus SARS-CoV-2. Learn more about the symptoms, risks and ways to protect yourself.
Brain tumor
Find out more about the different types, signs, symptoms and causes of brain tumors, which are growths of cells in the brain.
Chickenpox
Learn more about preventing this once-common childhood illness. Also, find out how to recognize and manage it.
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.
Hydrocele
Find out more about the symptoms, causes and treatments for this swelling in the scrotum.
Delayed ejaculation
Learn what can cause delayed or absent ejaculation and how it can be treated.
Varicocele
Find out how this condition involving the enlargement of veins in the scrotum can affect sperm quality and production.
Ampullary cancer
Learn more about the causes, diagnosis and treatments for cancer of the ampulla of Vater.
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