Galactorrhea is not a disease and has many possible causes.

Galactorrhea is generally considered a symptom which may indicate a more serious problem.

Case reports suggest proton-pump inhibitors have been shown to cause Galactorrhea.

Galactorrhea also occurs in males, newborn infants and adolescents of both sexes.

Galactorrhea may also be caused by hormonal imbalances owing to birth control pills.

Abnormal milk flow from the breast in a woman who is not pregnant or nursing (galactorrhea)

However, the cases are not sufficiently documented to allow distinguishing of possible pathologic galactorrhea.

It causes amenorrhea, galactorrhea, and infertility in females.

Galactorrhea in the estrogen-primed female breast.

Discharge from the breast (galactorrhea)

Galactorrhea (infrequent in men)

But galactorrhea simply describes a condition in which a woman's breast secretes milk or a milky nipple discharge even though she is not breastfeeding.

In usual circumstances, in the absence of galactorrhea, lactation will cease within one or two weeks of the end of demand breastfeeding.

Hormonal disorders (such as acromegaly, galactorrhea, and Cushing syndrome)

Galactorrhea or galactorrhoea is the spontaneous flow of milk from the breast, unassociated with childbirth or nursing.

MR images Galactorrhea and Pituitary tumors (microadenoma)

Systemic hormonal aberrations such as Cushing's syndrome, galactorrhea and acromegaly usually predate the compressive signs.

Collection of a thorough medical history, including pregnancies, surgeries, and consumption of drugs and medications is a first step in diagnosing the cause of galactorrhea.

The nipple is also squeezed check for secretions, such as secretion of milk (galactorrhea), serous, blood or purulent secretions.

Side-effects in men which directly result from its antiandrogenic action include gynecomastia (breast growth), galactorrhea (milk outflow), and erectile dysfunction.

Rare accounts of male lactation (as distinct from galactorrhea) exist in historical medical and anthropological literature, although the phenomenon has not been confirmed by more recent literature.

Unintended milk flow (galactorrhea) is often caused by nipple stimulation and it is possible to reach normal milk production exclusively by suckling on the breast.

Galactorrhea can also be caused by anti-psychotics that cause hyperprolactinemia by blocking dopamine receptors responsible for control of prolactin release.

Galactorrhea is milk production unrelated to nursing, it can occur in males and females of many mammal species as result of hormonal imbalances or unusual physiological stimuli.