VIA: FamilyDoctor.Org Some men and boys have fat on their chests that makes it look like they have breasts. This condition is called pseudogynecomastia (false gynecomastia). It is not the same thing as gynecomastia. What causes gynecomastia? Gynecomastia is usually caused by changes in hormones at birth, puberty or as part of aging. Gynecomastia may […]

What is gynecomastia? Gynecomastia is a condition in which firm breast gland tissue forms in males. The breast tissue is usually less than 1-1/2 inches across and is located directly under the nipple. Gynecomastia may be present on one side or on both sides. This condition may make the breast tender.