Please note: This information was current at the time of publication. But medical information is always changing, and some information given here may be out of date. For regularly updated information on a variety of health topics, please visit familydoctor.org, the AAFP patient education Web site.
Information from Your Family Doctor
Galactorrhea: What You Should Know About It
Am Fam Physician. 2004 Aug 1;70(3):553-554.
What is galactorrhea?
Sometimes a woman's breasts make milk even though she is not pregnant or breastfeeding. This condition is called galactorrhea (say: guh-lack-tuh-ree-ah). The milk may come from one or both breasts. It may leak on its own or only when the breasts are touched. Men can have galactorrhea, too, but it is more common in women.
What causes galactorrhea?
Galactorrhea has many causes, although sometimes a cause cannot be found. Here are some possible causes:
Some medicines, like hormones, birth control pills, antidepressants, and blood pressure medicine
Herbal medicines, such as nettle, fennel, blessed thistle, anise, and fenugreek seed
Street drugs, like marijuana and opiates
Clothes that irritate the breasts, like scratchy shirts or bras that don't fit well
Too frequent breast self-exams (daily exams)
Stimulating the breasts during sex
Tumors of the pituitary (say: pih-too-ih-terry) gland in the brain. These tumors are rare. They usually are not serious.
In newborn babies, hormones from the mother are passed on to the baby during birth.
What signs should I tell my doctor about?
Tell your doctor if you have any of these signs with your galactorrhea:
Irregular menstrual periods
Red (bloody) fluid leaking from your breasts
Less interest in sex or trouble having sex
Problems with your eyesight
Increase in hair growth on your chin or chest
Increased thirst or urination
Which tests might my doctor want?
Tests are not always needed to find out what is causing your galactorrhea. But your doctor might want to take a blood sample to find out your hormone levels and to see if you are pregnant. Your doctor also might want you to have an MRI scan of your head to see if you have a tumor.
How is galactorrhea treated?
Sometimes galactorrhea will go away by itself. If you have galactorrhea and no other problems, you may not have to be treated. If galactorrhea is a side effect of a medicine you are taking, your doctor might change medicines or give you a different dosage.
Most tumors that cause galactorrhea are not cancer. They usually can be treated with medicine. Most people do not need to have surgery for a tumor.
This handout is provided to you by your family doctor and the American Academy of Family Physicians. Other health-related information is available from the AAFP online at http://familydoctor.org.
This information provides a general overview and may not apply to everyone. Talk to your family doctor to find out if this information applies to you and to get more information on this subject.
Copyright © 2004 by the American Academy of Family Physicians.
This content is owned by the AAFP. A person viewing it online may make one printout of the material and may use that printout only for his or her personal, non-commercial reference. This material may not otherwise be downloaded, copied, printed, stored, transmitted or reproduced in any medium, whether now known or later invented, except as authorized in writing by the AAFP. Contact email@example.com for copyright questions and/or permission requests.
Want to use this article elsewhere? Get Permissions