YSK how to clean your genitals properly (male or female) and that it is important in order to prevent a variety of issues, smells, and imbalances of bacteria or ph, but that doesn't necessarily mean scrub everything with soap, and for the love of Pete, keep that soap and water out of the vagina!
from /r/YouShouldKnow
YSK如何正确清洁你的生殖器（男性或女性），为了防止各种问题、气味和细菌或ph值的不平衡，这很重要，但这并不一定意味着用肥皂擦洗所有东西，看在皮特的份上，让肥皂和水不要进入阴道！"。