Some people have no symptoms when they have urinary tract infections. However, several telltale signs indicate a problem. Urine may appear to be cloudy or even be stained pink with blood if the infection has advanced. It is also common to feel a burning or stinging pain when passing urine, and some people also feel pain in their lower stomach or back. The infection is often accompanied by a strong and frequent need to pass urine, and sometimes the development of a fever.

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