YSK: The "vagina" refers specifically to the inner canal of female assigned genitalia and is self cleaning - the outside is the labia which you should always watch.
from /r/YouShouldKnow
YSK："阴道 "特指女性指定生殖器的内管，可以自我清洁--外面是阴唇，你应该经常注意。
YSK："阴道 "特指女性指定生殖器的内管，可以自我清洁--外面是阴唇，你应该经常注意。
YSK: The "vagina" refers specifically to the inner canal of female assigned genitalia and is self cleaning - the outside is the labia which you should always watch.
from /r/YouShouldKnow