Some women are prone to urinary tract infections and have them often. For them, these infections can be especially frustrating. Causes Urinary tract infections are usually caused by bacteria from the bowel that live on the skin near the rectum or in the vagina. These bacter can spread and enter the urinary tract through the urethra. They then travel up the urethra causing infections in the bladder and, sometimes, in other parts of the urinary tract.
Sexual intercourse is one of the causes of ur nary tract infections.
Women may be prone to urinary tract infections after sexual relations because of their anatomy. In front of the vagin is the opening of the urethra. During intercourse, bacteria in the vaginal area could be massaged into the urethra by the back and forth motion of the penis. Bladder infections also tend to occur in women who change sexual partners or begin having sexual intercourse more frequently. Although it is rare, some women get an infection each time they have sex.