The common causes and treatments for boys with big chests when they were young are as follows:
1. Chest muscle hyperplasia: no discomfort, usually do not need special treatment.
2. Male breast enlargement: obese men, less exercise, prone to localized fat accumulation, and even obesity based on the increase in estrogen, which can easily lead to male mammary gland development, that is, male breast enlargement. Male breast hyperplasia, like female, can appear obvious pain, sometimes male breast hyperplasia is larger on one side, the other side is normal.
Weight control is necessary in these cases, and can be beneficial in reducing localized symptoms, including stimulating chest muscle growth. If the localized hyperplasia is severe and even painful, surgical excision of the mammary gland can be used to restore the appearance of the localized chest and reduce the pain.
It is recommended to consult a hospital for standardized examination and treatment.