Galactorrhea in men is lactation (the production of milk) in the breast. Causes of galactorrhea in men include:
• Side effects of certain medications (including some anti-hypertensive drugs, some opiod drugs, and some drugs to treat mental conditions)
• Abnormally low secretion of the hormone, thyroxin, by the thyroid gland
• Secretion of hormones by tumors of the pituitary gland
• Diseases of the hypothalamus gland
• Other conditions
If you are a man who is experiencing galactorrhea, consult your physician for diagnosis and appropriate therapy. Treatment of galactorrhea in men depends on the underlying cause of the condition. See our Q&A called Treatment of Galactorrhea in Men.