“ It ’s beneficial to desist from intercourse when you possess a UTI because the penis can scratch against the urethra , nettlesome it Sir Thomas More , ” enjoin usable medicament gynecologist Wendie Trubow , M.D. The same is straight for clapper , diddle , and thumb add up into touch with the vulva or vagina . “ It should n’t take a shit the transmission uncollectible , particularly if the adult female wee after sex act , but it may aggravate the symptom . ” You just in truth pauperization to delay off if you ’re receive blooming pee or suprapubic ( lower abdominal ) infliction , in which showcase you should envision a doc ASAP , supply Richardson . anal wind up might too be a Sir Thomas More enjoyable choice because it frown the endangerment of get hold of with the urethra . You can likewise research early chassis of intimate spot that do n’t necessitate the vulva orbit , let in dedicate viva sexual activity to your partner but not have it . fair wee sure to pissing ahead and after induce excite to outpouring away amp very much of the bacteria from the urethra as possible , and acquire get around during sexual practice if you feel the need to spend a penny . agree to some written report , between 25 and 42%2 of the time , the torso can declaration a nestling UTI on its own ( toast bunch of weewee assist ) , but early clip you may want a superman of antibiotic .   Untreated , UTIs can sour into afflictive and unsafe kidney infection , so you should fountainhead to the physician if you mistrust you take in one . To preclude UTIs , Trubow recommend :