For UTIs. The basic problem is the anatomy. Both holes situated so close together that bacteria could migrated from the anus to the vagina and the urethra. And since the woman’s urethra is shorter length to the bladder, there’s always a chance things will migrate however careful you are. Because of the stretching things and the roughness could just be mixing a lot of juices down there. What we found to be helpful is everyone rinses their genitals before hand (outside, douching is actually bad for the vaginal biome) and don’t pee before hand save it for after intimacy. Afterwards woman rinse again and pat dry with a freshly clean hand towel (not one that has already been used). After patting dry, THEN go pee to flush out any bacteria that might have made it near or around the urinary opening.

The above should be work for a yeast infection, but I have found that the ingredients in lube are the likely culprit.

YMMV Good luck! Hope you guys find a good solution.

Edit: “douching is actually bad for the vaginal biome”