My Bidet does not spray much around my anal area. It has several build in spray patterns, and one can select the one that deems to be best for the presented condition. I never had a situation that any of the water spray came close to the exit of my urethra. However, I can also select a spray pattern that cleans the vulva area only. I have the thing for more than 4 years already, and never experienced any problem with it.
I bought my Bidet after I had massive genital surgery, and had no real good way to keep clean and free of infection, and this device made it possible for me, I never got an infection since I have this.