Summarize this article in one sentence.
Pain during urination and a need to go frequently and urgently are the main early signs of a UTI. If you notice these symptoms in yourself or someone in your care, schedule an appointment with a health care provider right away. You may feel the urgent need to urinate, but only pass a very small amount. Urine may appear cloudy, pink, red, or dark brown with a UTI. If you notice that your urine, or the urine of someone in your care, has an unusual appearance, schedule a visit with a healthcare provider. If you are using a catheter, hold the bag up to the light to check if it is clear. If you see cloudy residue, this may be a sign of a urinary tract infection in its early stages. If you have a UTI, your urine may smell strong or unpleasant. See a doctor if you notice that your urine smells bad, particularly if the smell is accompanied by other symptoms of infection (such as pain during urination or discolored urine). Some foods, like asparagus, can also affect the odor of your urine. For women, a UTI may cause pain in the center of the pelvis, in the area of the pubic bone. Pelvic pain can also be a sign of some other serious condition. Schedule an appointment with your doctor if you or someone in your care experiences pelvic pain. UTIs in their early stages may cause a variety of other symptoms in the elderly, some of which may mimic other conditions. Schedule an appointment with a health care provider if you notice:  Confusion. Light-headedness. Pale skin. A low-grade fever. For someone using a catheter, do a daily temperature check to catch any signs of infection early.

Summary:
Watch for pain and urgency during urination. Look for cloudy or discolored urine. Note any unusual urinary odors. Pay attention to pelvic pain in women. Check for other early signs of a UTI.