One in two women and one in 20 men will experience a UTI at some point, with varying degrees of severity according to how far the infection spreads, says Dr Tim Mathew, medical director of Kidney Health Australia. Herbs that can provide relief and act as a natural antibiotic include garlic, golden seal, uva ursi and crataeva, all available from health-food shops or herbalists. Cystitis occurs when the bacteria travel to the bladder, a trip of only about two centimetres in women, which is why men are less likely to contract it. It is typically caused when the man's penile thrusting irritates the back wall of the bladder through the front wall of the vagina , massaging organisms into the bladder which, if you don't pee right after sex, can multiply and cause infection. Having sex increases the chance of cystitis in some women see below. More frequent urge to urinate, even if it is only a few drops. Also make sure you don't "hold on" too long even if you haven't had sex. The mucus around your vagina and opening of your urethra is slightly acid which prevents bacteria from multiplying. Whenever I present my case to a doctor I'm not taken seriously. Taking antibiotics without identification of the causative bacteria and their sensitivity may not eradicate the infection, and this usually results in bacterial resistance. Don't use a diaphragm or spermicide as your form of birth control. It occurs whenever vaginal intercourse leads to urinary tract infections UTI. I'm 32 now and unable to maintain a relationship. With one, every time we have intercourse, I get a bladder infection. She's most at risk the first time she has sex with a new partner. There is also some evidence it is more common if condoms are used.