The reasons why women are prone to urinary tract infections are mainly caused by the special structure of the female reproductive system, the fact that female vaginal secretions are also a better medium for the use of bacteria to multiply more easily, and the slow flow of urine to form a mild effusion. Urinary tract infection, also known as urinary tract infection, is an inflammation of the urinary tract caused by pathogens growing and multiplying in the urinary tract of the organism and invading the mucous membrane or tissue of the urinary tract. Bacteria are the most common pathogens, while fungi, viruses and parasites can also cause infection. What are the main symptoms of slow urine flow examination? 1, abnormal urine: urinary tract infection can cause abnormal changes in urine, commonly bacterial urine, pus urine, hematuria and gas urine, etc. 2, abnormal urination: common abnormalities of urination in urinary tract infection are frequent urination, urgent urination and painful urination, and urinary incontinence and urinary retention can also be seen. Polyuria can be seen in the early stage of chronic renal failure caused by chronic pyelonephritis, and oliguria or anuria can be seen in the later stage. 3. Low back pain: Low back pain is a common clinical symptom. Kidney and perirenal disease is one of the common causes of low back pain. When the kidney envelope, renal pelvis and ureter are stimulated or tension is increased, it can cause painful sensation in the lumbar region, and lower urinary tract infection usually does not cause lumbar pain. Inflammation of the kidney and perinephric area, such as renal abscess, perinephritis, perinephric abscess, and acute pyelonephritis, often cause persistent severe swelling and pain in the lumbar area, and lumbago caused by chronic pyelonephritis is often sore.