Learn more. Patient Education Feb 25 A breast lump or is a bulge or bump in the breasts. Breast lumps are more common in older women, but they can also develop in teenagers, young girls and babies. There are many different types of breast lumps that happen in children, but most are benign noncancerous.
Gynecomastia is a condition in which men have enlarged breasts. Both boys and men can have the condition. It can occur in newborns as well. Some men or boys have excess fat that looks like breasts. This is known as pseudogynecomastia.
Hormones sometimes cause breast growth in male children. This is called gynecomastia. Using some medicines also can cause breast growth.
It can occur in one or both breasts. Pubertal gynecomastia happens during the early years of puberty and usually goes away within 12 to 18 months. The causes of pubertal gynecomastia are not entirely understood. However, it is thought that hormone changes in puberty lead to these physical breast changes in adolescent males.