syphilis of male urogenital system

例句：

1. 1.Syphilis is a sexually transmitted disease that can cause serious health problems.
   梅毒是一种通过性行为传播的疾病，可能导致严重的健康问题。
2. 2. Syphilis was first identified in the late 19th century.
   梅毒在19世纪末首次被识别出来。
3. 3.The patient had been treated for syphilis and showed no signs of recurrence.
   该患者曾接受过梅毒治疗，且未出现复发迹象。