Breast Milk Outside Pregnancy or in a Man
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Reviewed By:

Unnati Patel, MD, MSc

Unnati Patel, MD, MSc (Primary Care Physician)

Dr Patel graduated from the Zhejiang University School of Medicine. She worked in clinical research at the University of Illinois in Chicago and University of Nevada in Las Vegas focused on culturally adapted health interventions for preventive medicine in the community setting. Received her Master's of Science in Global Health (concentration in Health Policy) from Georgetown University, during which she worked with the WHO in Sierra Leone and Save the Children in Washington, D.C. Unnati went on to complete her family medicine residency in Chicago, Illinois at Norwegian American Hospital. | | She is currently working as a primary care physician in the city of Chicago and completing her Master's of Business Administration at the Northwestern University Kellogg School of Management and Fellowship in Leadership in Value-Based Care.

Yoshinori Abe, MD

Yoshinori Abe, MD (Internal medicine)

Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.

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Content updated on Jan 30, 2024

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People with similar symptoms also use Ubie's symptom checker to find possible causes

  • Producing breast milk inappropriately

  • Produce breast milk inappropriately

  • Secretion of milk inappropriately

  • Inappropriate milk production

  • Lactating inappropriately

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About the Symptom

Lactation is the secretion and yielding of milk through the mammary glands, which are located in the breasts. Lactation outside of pregnancy or in males is called galactorrhea. Some causes include medicines, like hormones, birth control pills, antidepressants, and blood pressure medicine. Herbal medicines, such as nettle, fennel, blessed thistle, anise, and fenugreek seed can also cause it. Marijuana and opiates, hormone imbalances, clothing that irritates the breast/nipples, tumors of the pituitary gland in the brain, thyroid or kidney disease have also been found to cause it.

When to see a doctor

Seek professional care if you experience any of the following symptoms

  • Breast milk outside pregnancy or as a man

Possible causes

Generally, Breast milk outside pregnancy or in a man can be related to:

  • Hyperprolactinemia

    Excessively high prolactin (hormone that releases milk) levels in the blood. Causes include medications and brain tumors.

  • Mastopathy

    A condition where a painful lump forms in the breast due to imbalances in female hormone levels, causing symptoms to occur before and during menstruation.

  • Pituitary adenoma

    Pituitary adenoma is a non-cancerous tumor that starts in the pituitary gland (a small, hormone-producing brain structure). These are usually slow-growing and do not cause symptoms at first. However, these tumors can grow large enough to compress nearby structures, which in turn causes symptoms such as headache or visual problems.

  • Hypopituitarism
  • Acromegaly
  • Neuromyelitis Optica (NMO)

Doctor's Diagnostic Questions

Your doctor may ask these questions to check for this symptom:

  • Are you producing breast milk without being pregnant or giving birth, or if you are a man?

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Find Similar Symptoms

Similar symptoms or complaints

References

  • Galactorrhea - American Academy of Family Physicians

    https://www.aafp.org/pubs/afp/issues/2004/0801/p553.html

Reviewed By:

Unnati Patel, MD, MSc

Unnati Patel, MD, MSc (Primary Care Physician)

Dr Patel graduated from the Zhejiang University School of Medicine. She worked in clinical research at the University of Illinois in Chicago and University of Nevada in Las Vegas focused on culturally adapted health interventions for preventive medicine in the community setting. Received her Master's of Science in Global Health (concentration in Health Policy) from Georgetown University, during which she worked with the WHO in Sierra Leone and Save the Children in Washington, D.C. Unnati went on to complete her family medicine residency in Chicago, Illinois at Norwegian American Hospital. | | She is currently working as a primary care physician in the city of Chicago and completing her Master's of Business Administration at the Northwestern University Kellogg School of Management and Fellowship in Leadership in Value-Based Care.

Yoshinori Abe, MD

Yoshinori Abe, MD (Internal medicine)

Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.

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