Enlargement of the genitals may be caused by local infection or trauma, but also can be seen in the circumcision embedded caused by poor blood circulation and so on, it is recommended that the patient go to the hospital in time. 1. Local infection: after infection can lead to mucosal congestion, edema, organ enlargement, can be accompanied by increased secretion. Infection is mostly caused by poor local hygiene or contact infection. 2. Local enlargement caused by trauma: such as the direct blow of violence or contusion, etc., can lead to bruising, congestion, or edema of tissue cells, so it is manifested as enlargement of the genitals, which can be accompanied by pain. 3. Poor blood circulation: such as foreskin incarceration can cause local blood, tissue fluid circulation is not good, and then cause enlargement. When some patients have vascular lesions such as arteriosclerosis, it is also easy to cause genital enlargement with bruising. It is recommended that patients go to the hospital in time for examination when they have enlarged genitals or uncomfortable symptoms.