Gynecomastia is a condition that causes a great deal of emotional stress for men because of the impact that it has on their physical appearance. Some men develop enlarged male breast tissue and puffy nipples. Hence it's nickname, man boobs or moobs. The puffy nipple appearance can often be the most alarming. Gynecomastia can be seen through form-fitting clothing or during times when a man may want to take his shirt off, such as when he is at the gym...