Using a diaphragm for birth control increases the risk even more, as the location of the diaphragm doesn't allow the bladder to totally empty itself — allowing urine and bacteria to collect. And a woman's urethra is closer to the anus, allowing those bacteria to reach the urethra without going far. Having sex increases the chance of cystitis in some women see below. Comparatively, females are more prone to urinary tract infections UTI due to the anatomy of the female genitourinary tract. Women with recurrent UTI a have more binding sites for infective organisms on the linings of the vagina and urethra. Sex is a common cause of UTIs in women because sexual intercourse introduces bacteria into a woman's urinary tract. Wearing a condom can also help reduce a man's risk of getting a UTI from sex. Some women have recurring bouts of cystitis, sometimes defined as two proven infections within six months, or three infections in a year. This is done by subjecting a fresh, middle stream specimen of urine to microbiological and sensitivity tests. This may be partly due to the movements during sex which may push bacteria up into the bladder. Therefore, it is not the frequency of sex that causes recurrent UTI, but in all women, the proximity of the short urethra to the vagina; and in some women the abundance of binding sites for infective pathogens and the lack of an enzyme blocker. If you do notice the symptoms of a urinary tract infection, seek UTI treatment from your doctor right away. In uncomplicated UTI, the urinary tract has no structural abnormality, the renal function is normal and there is no associated disease which impairs defence mechanisms. The use of diaphragms and spermicide may make cystitis more likely. You might also like these other newsletters: If a bout does occur, it is usually caused by a germ bacterium which is resistant to the antibiotic you are taking regularly.