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gynecomastia

Enlarged breast gland tissue in a male.

gy-nuh-koh-MAS-tee-uh noun

Word parts

What it means

It happens when the balance between estrogen and testosterone shifts. It is common and often temporary in newborns, teenage boys and older men. Other causes include liver disease and drugs such as spironolactone, some antipsychotics, anabolic steroids and hormone treatment for prostate cancer.

For the nurse

Ask about drugs and substance use, and give the client privacy and room to talk, since it can be embarrassing.

At a glance

Spanishginecomastia

Related terms

estrogen

A female sex hormone, made mainly by the ovaries, and the group of drugs that act like it.

-ia

A word ending that means a condition, often an abnormal one.

prolactin

A hormone made by the pituitary gland that tells the breasts to make milk.

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