Common symptoms that may indicate an urinary tract infection include: • A strong, persistent urge to urinate • A burning sensation when urinating • Passing frequent, small amounts of urine • Urine that appears cloudy • Urine that appears red, bright pink or cola-colored — a sign of blood in the urine • Strong-smelling urine • Pelvic pain around the area of the pubic bone and in the center of the pelvis