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Exams and Tests
Gynecomastia is usually diagnosed by a physical examination. The presence of breast tissue greater than 0.5 cm in diameter is characteristic of gynecomastia. In addition to a physical examination, a careful medical history is also important to help assess the cause of gynecomastia.
The doctor may order tests, such as blood tests or imaging studies, to help establish the reason for gynecomastia. Mammography is indicated if there is any suspicion of male breast cancer.
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