Is the boy breast a bit big normal

If a boy's breast is slightly enlarged, and there is no pain, swelling and other performance, and laboratory examination found that endocrine function is normal, generally related to growth and development, is a normal phenomenon. But if the breast is obviously enlarged, or the above symptoms exist, or abnormal sex hormone secretion, it may be caused by factors such as infection, precocious puberty, etc., is not normal.

Boys can actively participate in sports activities, such as running, basketball, swimming and other aerobic exercise, can enhance cardiopulmonary function, promote physical development and health.