In fact, I'd discourage it unless you have access to an autoclave to sterilize your sounds and have the knowledge, experience, and gear needed for carrying out a sterile process as in a hospital operating room. I've done it and just as GreenThisUp_2 has warned you, ended up with repeated infections in the GU tract. Yes, it feels great when a sound reaches your prostate, like an orgasm that goes on as as you want, but at what price? Just to emphasize the issue, the medical authorities here have forbidden urologists from carrying out cystoscopies in anything less than hospital quality facilities. urologists are bitching, because it would cost them a fortune to set up such a facility. My own urologist carried out the procedure at the hospital. So-ed rosebud sounds are a specially bad choice because the thin wire is quite capable of cutting the inside of your urethra. It's not much fun when you pee and out comes big blood clots. Rosebud sounds are actually intended for dilating the gall duct; they are not designed for GU sounding, even though lots of BDSM gear sites sell them for that purpose. don't do it. Let sounding remain an un-realized fantasy. You'll have significant savings on your antibiotic bills.