ulcer of prepuce

例句：

1. 1. He had an ulcer on his penis that required medical attention.
   他的阴茎上有一个溃疡，需要医疗关注。
2. 2. The doctor prescribed medication to treat the ulcer on his penis.
   医生开了药来治疗他阴茎上的溃疡。
3. 3. The patient was advised to avoid sexual activity until the ulcer healed.
   病人被建议在溃疡愈合之前避免性行为。