A 6-year-old boy was seen for post-traumatic priapism which had been present for 4 days. Intracavernous injection of metaraminol was performed to reduce the arterial blood inflow of the penis. Within 30 min after the injection, the penis became flaccid, and the prognosis was good. Recently it was reported that there are two different types of priapism. Type 1 priapism is due to blood stasis. This type is well known and characterized by extremely hard corpora and painful penis. Type 2 is caused by increased arterial blood flow of penis. It differs clinically from type 1 by a more elastic consistency of the penis and the absence of pain. Generally the prognosis of type 2 priapism is favorable. In our case, the penis was relatively elastic and not painful. It was considered to be type 2 priapism.

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