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M

Male hypogonadism

A condition in which the body doesn’t produce enough testosterone, which plays a key role in creating enough sperm as well as masculine growth and development during puberty.

Mammogram

An imaging procedure in which X-ray pictures are taken of the breast to screen for early signs of breast cancer.

Mammoplasty

A surgical procedure in which breast tissue and skin are removed to reshape the breasts and achieve the desired size.

Masturbation

The act of self-stimulation for sexual pleasure.

Menopause

The time in a woman’s life when she naturally stops having menstrual periods, marking the end of a woman’s reproductive years; usually starts between the ages of 40 and 58.

Metastasis

A phenomenon in which cancer has spread beyond the part of the body where it originated.

Microdermabrasion

A surgical planing technique used to renew overall skin tone and texture.

Microsurgical varicocelectomy

A procedure used to treat a varicocele in which the surgeon makes a small incision just above the scrotum, and cuts and ties the enlarged vein using sutures.

Microvascular heart disease

A heart disease that affects the walls and inner lining of tiny coronary artery blood vessels that stem from larger coronary arteries.

Mifepristone

A drug commonly used to perform medical abortions that works by blocking the action of the hormone progesterone, which prevents the “thickening” of the uterine lining that is required for an embryo to stay implanted.

Misoprostol

A drug commonly used to perform medical abortions that works by causing a contraction of the uterus, an action that expels the embryo through the vagina.

Modified radical mastectomy

A procedure used to treat breast cancer in which the entire breast, nipple and areola are removed as well as the lymph nodes under the patient’s arm.

Mons pubis

A fleshy area above the vulva that is naturally covered in pubic hair and protects the pubic bone.

Morning-after pill

A safe form of emergency contraception that women can take after having unprotected sex to prevent unwanted pregnancy.

Motivational enhancement therapy

A counseling approach in which a therapist works with the individual to help identify underlying reasons and motivations for substance abuse as well as useful strategies to refrain from it.