Gynecomastia refers to an overdevelopment of male breasts. In mild cases, it may just manifest as excess fat deposits over the pectoral muscles. However, in severe cases, the mammary glands can become overdeveloped. This can happen in one or both breasts, and can also occur asymmetrically. Gynecomastia can affect infants, adolescents, adults, and seniors. Although it can happen at any stage in life, it is particularly common for younger adolescent boys, roughly between the ages of 10 and 12. This condition can affect anywhere from 50 to 75 percent of boys at this stage in their life. While the condition will usually resolve on its own, it can be particularly embarrassing for patients of all ages.
