Can men's underwear be washed overnight?

Overnight washing is not recommended.

General underwear is close-fitting clothing, and personal word will be infected with secretions, and these secretions are mostly protein and inorganic salt, if not timely cleaning, easy to breed more harmful material such as bacteria, and microbes, at the same time, after the overnight briefs on the peculiar smell to attract some flies flying insects, and these bugs may also carry germs, which increase the difficulty of cleaning, Easy to wash not thoroughly.