tunica vaginalis

例句：

1. 1.The doctor examined her vaginal area and found no signs of infection.
   医生检查了她的阴道区域，没有发现感染的迹象。
2. 2.During sex, the vaginal area is vulnerable to bacteria and other pathogens.
   在性行为期间，阴道区域容易受到细菌和其他病原体的侵袭。
3. 3. Vaginal discharge is a common symptom of bacterial vaginosis.
   阴道分泌物是细菌性阴道炎的常见症状。