In children, what is typically the timeline for gynecomastia resolution during puberty?

During puberty, it is not uncommon for boys to experience gynecomastia, which is the benign enlargement of breast tissue. This condition is primarily related to the hormonal changes that occur during this stage of development, particularly the fluctuation of estrogen and testosterone levels.

Typically, gynecomastia in pubertal boys resolves within a timeline of 6 to 18 months after it first becomes noticeable. Most cases of physiological gynecomastia are transient and will resolve without any medical intervention. The resolution may take longer for some individuals, sometimes extending closer to the 18-month mark, particularly depending on when puberty begins and the individual variations in hormonal levels.

Longer periods, such as 2-5 years, may not accurately reflect the common experience of most pubertal boys, as by the end of the teenage years, most will see a resolution of the condition. Therefore, stating that gynecomastia resolves in 6 to 18 months aligns with clinical observations and helps in managing expectations for both patients and their families during this phase of development.