How is it possible that bacteria enters the vagina during intercourse if the woman is clean?

Which will then lead to a UTI

How is it possible that bacteria enters the vagina during intercourse if the woman is clean?
Women should go pee before sex to avoid a UTI. But anyhow, I would imagine germs and bacteria get pushed in there during sex.
Reply:often due to enviromental factors and quite often, the penis
Reply:The urethra is not the same hole as the vagina, so bacteria in the vagina has nothing to do with getting a UTI.





There is also some bacteria normally living in the entrance of the urethra anyway. Usually they don't get up into the bladder to make a UTI, but in my experience sex in certain positions pushes them up in there and I get a UTI. There really isn't any way to remove all the bacteria from your skin or genital area, so cleaning yourself may be helpful but will not 100% prevent UTIs. Peeing before and after sex may help, and/or drinking a lot of water to help you pee more, to flush any extra bacteria out. Please do some more research on it as I don't think you understand what is going on in the first place.





No matter how clean you try to get your skin, some bacteria will still remain on it, but many kinds are normal, and by being there they compete with any bad bacteria or yeast that you may come in contact with, thereby helping keep you healthy.





A healthy vagina has A LOT of bacteria in it already, mostly Lactobacillus acidophilus (the same stuff in supplements that helps digest milk). Acidophilus means acid-lover, this bacteria makes the vagina normally very acidic (and why most douches use vinegar, but douches reduce the number of lactobacillus, which is unhealthy). The acidity of the vagina is important because it helps kill any other potentially harmful bacteria or yeast that may get in there, from the skin or objects, especially fecal bacteria which can cause a nasty infection. Minor vaginal infections can be cured by inserting Acidophilus supplements into the vagina, however, and it's a lot cheaper and much healthier than going to the doctor and taking antibiotics. Just make sure Lactobacillus acidophilus is the only bacteria in the supplement.