Gynecomastia is a common occurrence in boys going through puberty.There are different types of #gynecomastia. Categorized as #physiologic gynecomastia, up to 2/3 of boys going through puberty develop some form of gynecomastia. This form of gynecomastia is due to the surges in testosterone and estrogen which often lead to an imbalance of the testosterone:estrogen ratio. Puberty is a difficult time for most boys, with many changes occurring not just physically but also emotionally. Developing gynecomastia during this age can affect the self-image and confidence of a teenager. The peak incidence occurs around 14 years of age.In up to 75% of boys who develop pubertal gynecomastia, it will disappear without treatment within 2 years. In 90% of boys with pubertal gynecomastia, it will disappear without treatment within 3 years. So deciding who needs surgery is very important in this age group because a majority of these boys will not need any intervention.#Normal Gynecomastia is usually apparent in males between the ages of 12 to 15 years old. It is also common for older men 65 years old or more who experience a drop in their testosterone levels. #Normal Gynecomastia takes approximately one to two years to naturally regress on its own.Meanwhile, #Adolescent Gynecomastia is hereditary and usually appears in 30% to 60% of boys between the ages of nine to fourteen. Many cases of adolescent gynecomastia resolve on its own as the boy grows into adulthood. Some with #Adolescent may choose to undergo surgery to correct the situation, this usually happens at the age of 18 or above. In severe cases in young boys, the physician and child development specialists will need to speak to the parents regarding the severity of the gynecomastia and if surgery is an option before the age of 18.While there is no “youngest age” to undergo gynecomastia surgery, I make sure my teenage patients have had gynecomastia for at least two years and have no other identifiable causes for their gynecomastia.