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 infections. What is the diagnosis of slow urine flow? According to the urine culture results, anti-inflammatory and antibacterial drugs that are sensitive to the causative organism are used. If treated promptly, most of the symptoms disappear in about 1 week. In order to prevent repeated infections, you should pay special attention to vulva cleanliness and change underwear regularly. Drink more water often to facilitate urination and flush the bladder. In case of repeated acute inflammation, take a small amount of estrogen orally or insert estrogen suppositories into the vagina to promote the restoration of tone and epithelial growth of the internal and external urethral sphincter and to enhance local resistance. Depending on the presence or absence of functional or anatomical abnormalities of the urinary tract, urethral infections are classified into complex urethral infections and simple urethral infections. Complex urinary tract infection refers to: 1. organic or functional abnormalities in the urinary tract, causing urinary tract obstruction and poor urinary flow. 2, there is a foreign body in the urinary tract, such as stones, indwelling catheter, etc. 3, there is obstruction in the kidney, such as urethral infection based on chronic renal parenchymal disease, mostly pyelonephritis, which can cause kidney tissue damage. Long-term recurrent infections or incomplete treatment can progress to chronic renal failure. Pawlowski et al. found chronic pyelonephritis in only 3.1% of 4596 autopsies, and therefore concluded that adult pyelonephritis, if simple, rarely causes end-stage renal disease or pathological chronic pyelonephritis. Depending on the history, urinary tract infections are subdivided into primary and re-infection, the latter being subdivided into recurrence and reinfection. Primary urinary tract infection is the first episode; recurrence refers to incomplete treatment, often within 6 weeks after discontinuation of the drug, with the same strain of bacteria with the same serotype as the original infection, mostly seen in pyelonephritis; reinfection refers to the original infection has been cured, by a different strain of infection again, often occurring after 6 weeks of discontinuation of the original treatment, mostly seen in cystitis. Frequent recurrences must be searched for.