Man Breast

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Reviewed By:

Yoshinori Abe

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 4, 2023

About the symptom

An increase in the amount of breast gland tissue in boys or men, caused by an imbalance of the hormones estrogen and testosterone.

When to see a doctor

Seek professional care if you experience any of the following symptoms

  • Enlarged male breasts

Possible causes

  • Cirrhosis of the liver

    A condition where normal liver is permanently damaged and replaced with scar issue. There are many different causes including infections, alcohol abuse and diabetes.

  • Gynecomastia

    A condition where abnormal hormone levels cause males to develop female characteristics (enlargement of the breast). Common causes include medications and tumors in the brain.

  • Hyperprolactinemia

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

  • Hyperthyroidism
  • POEMS syndrome

Related serious diseases

  • Wernicke encephalopathy

    Wernicke encephalopathy (WE) is a life threatening, degenerative condition of the brain characterized by weakness of the eye muscles, ataxia (loss of coordination, balance and speech) and confusion. It's caused by thiamine deficiency which results in nervous system damage.

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Do you think your breasts are getting bigger?

  • Do you have swelling of the testicles or scrotum?

  • Are you currently taking any diuretic medication (medication to increase passing of urine)?

  • Have you ever been diagnosed with liver problems?

Other Related Symptoms

Similar symptoms or complaints

References

  • Sansone A, Romanelli F, Sansone M, Lenzi A, Di Luigi L. Gynecomastia and hormones. Endocrine. 2017 Jan;55(1):37-44. doi: 10.1007/s12020-016-0975-9. Epub 2016 May 4. PMID: 27145756.

    https://link.springer.com/article/10.1007/s12020-016-0975-9

  • Dickson G. Gynecomastia. Am Fam Physician. 2012 Apr 1;85(7):716-22. PMID: 22534349.

    https://www.aafp.org/pubs/afp/issues/2012/0401/p716.html

  • Narula HS, Carlson HE. Gynecomastia. Endocrinol Metab Clin North Am. 2007 Jun;36(2):497-519. doi: 10.1016/j.ecl.2007.03.013. PMID: 17543732.

    https://www.sciencedirect.com/science/article/abs/pii/S0889852907000308?via%3Dihub

Reviewed By:

Yoshinori Abe

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.

From our team of 50+ doctors

Just 3 minutes.
Developed by doctors.

Ubie is supervised by 50+ medical experts worldwide

Shohei Harase

Shohei Harase, MD

Neurology

Kameda Medical Center, Japan

Yu Shirai

Yu Shirai, MD

Psychiatry

Yotsuya Yui Clinic, Japan

Yoshinori Abe

Yoshinori Abe, MD

Internal medicine

Co-founder of Ubie, Inc.

Rohini R

Rohini R, MD

Ear, nose, throat (ENT)

Bayshore Health Centre, India

Seiji Kanazawa

Seiji Kanazawa, MD, PHD

Obstetrics and gynecology (OBGYN)

National Center for Child Health and Development, Japan

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