Can tight underwear and sleeping on a dirty bed lead to vaginal candidiasis?

Patient's question:

No

Doctor's answer:

A tight polyester thong, with a tight waistband that clings to the buttocks, is a fabric with extremely poor breathability. It prevents sweat from the perineum from evaporating and mixes with secretions from the vagina and urethra. If not cleaned promptly, it can easily cause irritation and infection in the perineal area.