Urinary tract infection (UTI)
A urinary tract infection (UTI) is an infection caused by bacteria in any part of the urinary tract, which includes the kidneys, ureters, bladder, and urethra. UTIs are the second most common type of infection in the body and are more common in women than in men. The most common symptoms of a UTI include a burning sensation during urination, frequent urination, and lower abdominal pain. UTIs can also be accompanied by fever, fatigue, and cloudy or bloody urine. UTIs are usually caused by bacteria that travel up the urethra and into the bladder. The bacteria then multiply, causing an infection. In some cases, a UTI can be caused by other organisms, such as viruses, fungi, and parasites. Risk factors for developing a UTI include sexual activity, diabetes, use of a urinary catheter, and pregnancy. UTIs can be treated with antibiotics, although the type and length of treatment will depend on the severity of the infection and the underlying cause. Drinking plenty of fluids and urinating frequently can help flush out bacteria and reduce symptoms. In some cases, surgery may be necessary to treat a UTI.