The cause of gynecomastia isn’t always clear. So it’s a good idea to check in with your regular doctor or an endocrinologist, a doctor who specializes in hormone imbalances. During your appointment he may ask you: - How old were you when you noticed a change in your breast size? - Does the condition run in your family? - Have you noticed a difference in your nipple size? - Have you had any discharge or pain? - How's your overall health? - Do you drink alcohol, use drugs, or have you had inferti