Causes of Gynecomastia
So What are the Possible Causes of gynecomastia?
Persistent pubertal gynecomastia – 25%
Drugs – 10-25%
No detectable abnormality – 25%
Cirrhosis or malnutrition – 8%
Primary hypogonadism – 8%
Testicular tumors – 3%
Secondary hypogonadism – 2%
Hyperthyroidism - 1.5%
Chronic renal insufficiency – 1%
Emmanuel De La Cruz M.D.
References:
Braunstein GD. Gynecomastia. N Engl J Med. Feb 18 1993;328(7):490-5
Mahoney CP. Adolescent gynecomastia. Differential diagnosis and management. Pediatr Clin North Am. Dec 1990;37(6):1389-404
Carlson HE. Approach to the patient with gynecomastia. J Clin Endocrinol Metab. Jan 2011;96(1):15-21