When a woman says “down there”, she is generally referring to the vulva, and the chances of a woman getting sick from public restroom water splashing on her vulva are very slim. Although public restroom water may contain a lot of bacteria, and sometimes viruses, fungi and other pathogenic microorganisms, the skin and mucous membranes of the vulva have a certain degree of resistance to pathogenic microorganisms, so if the water is accidentally splashed on the vulva, it will not cause disease. If the water in a public restroom contains viruses or bacteria with strong pathogenicity, splashing the vulva with such water may cause illness, but the chance is very small. To be on the safe side, you can wash your vulva with water or soap and water in a timely manner, and if you wash your vulva in a timely manner, it will not cause an infection.