Urinary tract infection in the elderly refers to a series of symptoms and signs specific to the occurrence of bacterial, mycobacterial, gonococcal and other pathogenic infections in the urinary tract (upper and lower urinary tract) of the elderly. The prevalence of urinary tract infections in the elderly is as high as 1.6% to 43.3%. The symptoms of urinary tract infections in the elderly vary depending on the site of infection. However, all patients have varying degrees of fever and increased total white blood cell count and classification. Those with upper urinary tract infection have back pain, and in severe cases, systemic manifestations of renal insufficiency; those with lower urinary tract infection have obvious symptoms of urinary tract irritation. Clinical urinalysis has a large number of white blood cells and urine culture growth with pathogenic bacteria. In severe infections, there are signs of hyperthermia and sepsis, as well as elevated urea nitrogen and creatinine, and water-electrolyte disorders. Renal ultrasound or pyelogram may show atrophy of the kidney and deformation of the renal pelvis and calyces. Some patients may be asymptomatic (asymptomatic bacteriuria). The main causes of urinary tract infection in the elderly are as follows: 1. Patients are older, poorer, and less responsive to infection, which can easily lead to urinary tract infection; 2. The physiological thirst of the elderly gradually decreases, drinking less water and urinating less accordingly, so there is not enough urine to flush the bacteria in the urethra, increasing the chance of urinary tract infection; 3. The sensitivity of the epithelial cells of the urethra to bacterial adhesion in the elderly 3. The epithelial cells of the urethra are more sensitive to bacterial adhesion, making the ability of bacteria to adhere to the urethral epithelium enhanced; 4. Most men in old age suffer from diseases such as prostate enlargement or prostate hypertrophy, which can easily induce urinary obstruction or poor urination, causing a large number of bacteria to multiply in the urinary tract and symptoms of infection. The elderly should do the following to prevent and control urinary tract infections: 1, regular checkups If chronic recurrent urinary tract infections, you should also do prostate or urographic examination. 2, the elderly bacteriuria regardless of the presence of symptoms should be treated carefully. In order to obtain a complete cure it is best to use more than two kinds of antibiotics, the course of treatment is best not less than a week, but the dose should not be too large. Patients who are not well treated with antibiotics should undergo a comprehensive examination to detect and rule out urinary tract obstruction factors, such as stones, cysts, prostate hypertrophy, tumors, etc. 3, other The elderly should pay attention to drinking more water, while strengthening physical exercise, and maintain a pleasant mood to improve the body’s immunity and enhance the ability to resist as well as recover from disease.