15+ Reasons Why Men Develop Breasts: Gynecomastia Causes

Ultimate Gynemax
Men will have both male hormones (Androgens) as well as female hormones (Estrogens). The Androgens are responsible for deciding male characteristics like facial hair, muscle development, baldness, and so on. These male hormones are normally higher in amounts compared to the female hormone count. However, when there is any imbalance between Androgens and Estrogens in men, they may develop female characteristics and one notable feature is the development of enlarged breasts like in females.

There are however many other causes of Gynecomastia which include physiological, age-related, drugs etc..

Gynecomastia Causes in Men

Find the major reasons for Gynecomastia condition in Males.

Physiological Causes of Gynecomastia

You'll notice physiological causes of Gynecomastia in newborn and pubertal adolescent boys.

Breast enlargement may be accompanied by milk secretion in newborns which is basically due to the influence of estrogens on the boy within the womb. In most of the cases, this physiological gynecomastia goes away in a week or two.

Where as pubertal adolescent boys grow breasts buds that lasts for a year or two and then go away without doing anything. This is due to the hormone imbalances in them at puberty.

Age-Related Gynecomastia

Aged men often get Gynecomastia. By age increasing day by day, the testosterone levels decline in men and philandering characteristics of the female hormone like Gynecomastia thus appears.

Drugs and Gynecomastia

There are a few drugs that are known to cause Gynecomastia. These include:-
  • Antifungals (Ketoconazole)
  • Antibiotic drug* (metronidazole)
  • Antacids (Cimetidine)
  • AIDS drugs (Efavirenz)
  • Anxiolytic drug (diazepam)
  • Heart drugs (Spironolactone)
  • Prostatic adenocarcinoma or enlargement drugs (flutamide, finasteride etc.)
  • Tricyclic antidepressant drug, heart failure drugs (digoxin)

Other Gynecomastia Causes in Men

  • Semipermanent liver disease: Liver disease over long time periods may lead to an increase of estrogen (female hormone) production that may lead to Gynecomastia.
  • Kidney failure and need for dialysis
  • Deficiency of male hormones
  • Vulnerability to female hormones
  • Consumption of anabolic steroids or usage of Alcohol, Heroin, Methadone or Marijuana.
  • Radiotherapy and cancer chemotherapy particularly for testicular and prostatic adenocarcinoma (cancer).
  • Congenital disease: Klinefelter’s syndrome causes deformity and underdevelopment of testes in boys and leads to Gynecomastia.
  • Thyroidal disorders - particularly a hyperactive thyroid gland.
  • Tumors - specially those that release female hormones.
  • Malnutrition or severe diet - On malnutrition the testosterone count drops but estrogen levels stay normal, which may lead to Gynecomastia in some.
  • A few herbaceous plant like tea tree or lilac in shampoos and soaps have been affiliated with Gynecomastia due to their supposed powerless estrogen like action.
  • Unknown - occasionally the cause of Gynecomastia may be obscure.

Breast Cancer and Gynecomastia

At times the real cause behind breast expansion may be an underlying tumor or cancer.

Breast cancer in men is rare but wants to be omitted when Gynecomastia is found. Breast cancer turns up as a lump that is firm or hard with or without pain from the nipples.

Tumors and cancers as well tend to turn up as a single breast enlargement although most hormonal causes of breast enlargement in males normally develop enlargement of both boobs.

What to Do?

Find the available treatment options for Gynecomastia. Contact your family physician and take his suggestion.


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