That small lump with tenderness beneath the nipple is a normal part of puberty. In fact, about half of all boys develop gynecomastia during puberty. It's usually.
When a man's breasts swell, a hormone imbalance may be the cause. When a boy is going through puberty, or when an older man's body makes less testosterone, the balance of the Sometimes this lump is tender or sore.
Here are some common causes of breast pain in males, as well as how they're males — and of breast tissue itself usually stops when boys hit puberty. When this happens, a lump or multiple lumps can form in the breast.
This swelling of breast tissue is caused by hormones from their mother and the Older boys can develop more breast tissue around puberty. enough to be seen , doctors call it gynaecomastia' (say guy-nee-co-mass-ti-a).