
If you wear leggings too much it can cause them or increase the chances of getting them if you’re prone to it. Also if your underwear are synthetic fibers then it holds onto moisture for longer which can be bad. Also if you aren’t clean when touching yourself (hands, mouths, tongues, etc) or if your partner isn’t then that can cause one. Mouths and hands have a lot of bacteria even when you think you’re clean so if there’s oral going on then that can cause one.