Are tests needed to find the cause of gynecomastia?
Sometimes tests are recommended. The most common are mammography and ultrasonography. Whether you need tests depends on your age and what your doctor learns from your history and physical examination. Gynecomastia is common in teenage boys. As many as 65% of 14-year-old boys have gynecomastia. If you are a teenager, you probably will not need tests. Your breast enlargement will probably go away on its own in 2 or 3 years. However, younger boys and adults who have gynecomastia may need to have some tests. In these cases, it is possible that some kind of disease may be causing the problem.