How can kidney disease cause gynecomastia?

Hormone imbalance: Gynecomastia in men occurs when testosterone levels are decreased compared to estrogen levels. So it occurs when test. levels are decreased OR estrogen levels are increased. It is (relatively) common in infant males & adolescent males. Certain medicines, anabolic steroids, alcohol, marijuana, liver/thyr disease, tumor, malnutrition, and kidney failure/dialysis can all result in hormonal imbalances

Sex hormone issue: Renal failure has very widespread consequences on normal body function. In regard to gynecomastia, this results from decreased testosterone production and an increase in LH and FSH; the female hormone equivalent. The latter results from less excretion in the urine. This hormone imbalance causes Breast enlargement that typically resolved within a year.

Estrogen not excrete: Build up of estrogen (female hormone) by failing kidneys