The human body has many susceptibility factors to urinary tract infections, but also many defense mechanisms, therefore, in daily life, we should try to avoid various susceptibility factors and make full use of the body’s defense mechanisms. 1, insist on drinking a lot of water The urine excreted by the kidneys plays a flushing role on the bladder and urethra, which is conducive to the discharge of bacteria. Drinking a lot of water every day and urinating once every 2 to 3 hours can avoid the reproduction of bacteria in the urinary tract, which can reduce the incidence of urinary tract infections, which is the most practical and effective way to prevent urinary tract infections. In the attack or remission phase of the disease, drink a lot of water every day, also conducive to the recovery of the disease, drinking tea or light bamboo leaves in lieu of tea also has a certain preventive effect; 2, pay attention to personal hygiene female pubic and urethral orifice hosts a large number of bacteria, is a prerequisite for the occurrence of urinary tract infections. Therefore, we should always pay attention to the cleanliness of the pubic area, we should bathe regularly, and do not use pool bath or tub bath, we should change the underwear regularly, especially during the newlywed, menstruation, pregnancy and puerperium. Female infants should change diapers regularly; 3. Avoid using urinary tract infection instruments and intubation as much as possible Urinary tract instruments are easy to bring bacteria from the distal urethra into the bladder and upper urinary tract, and persistent bacteriuria is likely to occur after urinary tract intubation. When they must be used, they should be strictly disinfected. After 48 hours of urinary tract instrument use, it is advisable to make urine culture to observe whether urinary tract infection occurs. Patients who already have bacteriuria prior to examination with urinary tract devices are advised to control the infection first. Some patients who do not have bacteriuria at that time but have a previous history of recurrent urinary tract infections or have urinary tract abnormalities should be given antimicrobials to prevent infection during or 48 hours before and after the urinary tract examination. Giving antimicrobials during the first three days of indwelling catheterization can prevent or delay the onset of urinary tract infections, but giving them after 3 days has no preventive effect. In addition, a closed drainage system connected to an indwelling urinary catheter can significantly reduce the incidence of urinary tract infection; 4. Remove chronic infection factors A variety of chronic diseases such as diabetes mellitus, chronic kidney disease and hypertension have low systemic resistance and are prone to urinary tract infection, therefore, giving active treatment to the above diseases is an indispensable measure in plain daily life and an important part of the treatment of urinary tract infection. The incidence of urinary tract infection is higher in paralyzed patients suffering from various types of anatomical or neurological diseases related to the urinary tract, especially paraplegia or tetraplegia caused by spinal cord injury, resulting in functional urinary tract obstruction or inability to completely empty the urine in the bladder (increased residual urine), which is known as neurogenic bladder, and the incidence of urinary tract infection and pyelonephritis increases significantly. Bacteriuria, sepsis and finally vesicoureteral reflux and progressive renal scarring often occur in these patients. Intriguingly, the organisms causing the development of urinary tract infections in these patients are the same strains of non-urinary pathogenic pathogens as those that cause urinary tract infections in children with cystoureteral reflux and cause scar formation. Risk factors for the development of urinary tract infections in these patients include overinflated bladder, high-pressure voiding, large amounts of residual urine, urinary stones, bladder outflow tract obstruction, indwelling catheters, and urinary turnaround surgery.