The Full form of UTI is Urinary Tract Infection. UTI is an infection of the kidney, bladder, ureter, or urethra. It is abbreviated as UTI. Not everyone with a UTI has symptoms, but common symptoms include a frequent urge to urinate and burning or pain when urinating. A Urinary Tract Infection is an infection in any part of your urinary system but most infections involve the lower urinary tract — the bladder and the urethra. Females are at greater risk of developing a UTI than are males. Infection limited to bladder can be painful and annoying. However, serious consequences can occur if a UTI spreads to your kidneys. UTIs don’t always cause signs and symptoms, but when they do they may include a strong, persistent urge to urinate, a burning or painful sensation when urinating, passing frequent, small amounts of urine, urine that appears cloudy, urine that appears bright pink, red or cola-colored — a sign of blood in the urine, strong-smelling urine and pelvic pain, in women — especially in the center of the pelvis and around the area of the pubic bone. Treatment of UTI usually involves increased fluid intake and use of antibiotics. In cases where physical obstruction is present, special medications or surgery may be necessary.