A large national registry study covering 1998–2017 revealed something surprising: the number of gynecomastia diagnoses has increased significantly over the past 20 years. This wasn’t just limited to teenagers going through hormonal shifts—it was observed across multiple age groups, including young adults, middle-aged men, and even older populations.
Why the rise? The study didn’t point to a single cause, but several factors may play a role. Increasing rates of obesity—which boosts aromatase activity and leads to higher estrogen levels—likely contribute. Growing awareness and reduced stigma also mean more men are seeking medical evaluation than before. Additionally, greater exposure to endocrine-disrupting chemicals, medications, and recreational hormones (including anabolic steroids) may be playing a role.
The study’s value lies in highlighting gynecomastia as more than a cosmetic issue. For some men, it may signal underlying hormonal imbalances, metabolic problems, or side effects of medications. The increase in cases underscores the importance of paying attention to lifestyle, environment, and overall hormonal health.
While surgery remains an option, understanding these broader trends helps men make informed decisions—and may encourage more natural or preventive approaches before the condition progresses.
You can read the full research article here:
Marked Increase in Incident Gynecomastia: A 20-Year National Registry Study, 1998 to 2017