Is it natural for boys to have fat on their chest during puberty?

It is common for boys to experience temporary chest fat, also known as gynecomastia, during puberty. This is due to the fluctuating levels of hormones during this time, specifically the increase in estrogen relative to testosterone. This leads to the development of breast tissue in boys. Usually, this condition resolves on its own within a few months to two years. However, if it persists or becomes a significant source of distress for the boy, it's important to consult a healthcare professional for further evaluation and management.