In general, if the adolescent boys have hard lumps in the right chest may be due to endocrine disorders caused by male puberty, so that the mammary gland hyperplasia, which is a normal phenomenon; may also be suffering from male breast hyperplasia, breast infection, breast fibroids and other disease factors lead to.
Due to endocrine disorders in the male body during puberty, plasma estradiol levels are higher than testosterone levels, and estrogen will make the mammary glands hyperplasia, so that the phenomenon of breast lumps, usually do not need to worry too much about it, with the reduction of hormone levels, after a period of time can be disappeared on their own.
Boys with hard lumps in the right chest may also be suffering from male breast hyperplasia, breast infection, breast fibroids and other breast diseases. It is recommended to consult a doctor in time to clarify the cause of the disease, and generally need to be dealt with according to different causes, such as the application of drugs or surgery and other ways.