Welcome to e health forum.
Females have a higher risk for UTIs than most males, probably because of their anatomy, because their urethra is short and its exit (or entry for pathogens) is close to the anus and vagina, which can be sources of pathogens.
In addition, females who become sexually active seem to have a higher risk of UTI. This is due to the fact that during sexual intercourse, bacteria in the perineal region (Vaginal Introitus, Anal opening) can be propelled into the urethra. The resultant friction associated with sex also creates urethral tissue damage increasing the severity of infections.
Adopting a few precautions and important measures will help prevent recurrent urinary infections. These include -
1. Good hygiene - for females, wiping from front to back helps keeps pathogens in the perineal region away from the urethra;
2. Complete bladder emptying and avoiding the urge to resist normal urinary urge is important.
3. Washing and urinating before sexual intercourse and soon after sex, also helps to reduce the chance of urethritis / cystitis.
4. Avoiding factors that irritate the genital area also is helpful. For example, tight clothing, deodorant sprays, or other feminine products like bubble bath should be avoided as they may encourage UTI development.
5. Wearing absorptive underwear (for example, cotton instead of those made with synthetic material) may help wick away urine drops that otherwise may be areas for pathogen growth.
I hope this helps.