The ureters carry the waste products, as urine, from the kidneys to the bladder where it is stored until you urinate. A UTI most often occurs when bacteria enter your urethra and travel to the bladder and sometimes to the kidneys. Some people get an infection because the normal flow of urine is blocked, or is backed up from the bladder into the kidneys. Sometimes kidney or bladder stones can cause repeated infections. You are more inclined to get a UTI if you have low resistance, a poor diet, or stress.
Women have a much greater tendency of getting a UTI than men have.
Pregnant women are especially prone to UTIs because pressure on the bladder and ureters prevents urine from emptying completely, allowing bacteria to grow. If mild symptoms have not disappeared within a day or two, then you will need to have a urine test. Your doctor will ask you to wash your genitals, urinate a little, then collect the rest of your urine in a sterile jar. If you have an infection, your doctor will probably prescribe an antibiotic. If you have an infection, avoid bubble baths, perfumed soaps, and vaginal douches.