The body urinary system consists of the kidney, the renal pelvis, the ureter, the bladder and the urethra, and related vascularized nervous components. Because bacteria such as e. coli invade the urinary tract, they cause a variety of urinary tract infections, including urethritis, cystitis and pyelonephritis, among which urethritis and cystitis are called lower urinary tract infections, and pyelonephritis is called upper urinary tract infections. When the following three signs appear, beware of urinary infection:

(1) abnormal urine urinary tract infection can cause abnormal urine changes, such as bacterial urine, purulent urine, hematuria and so on.

(2) abnormal urination. Frequent urination abnormalities in urinary tract infection are frequent urination, urgency and pain, and urinary incontinence and retention. Chronic renal failure caused by chronic pyelonephritis may occur in the early stage with multiple urine, and in the later stage with little or no urine.

(3) low back pain and low back pain are common clinical symptoms. Kidney and kidney peripheral diseases are one of the common causes of low back pain. Chronic pyelonephritis usually causes severe distention pain in the waist. Chronic pyelonephritis often causes pain in the back.

When acute urethral cystitis occurs, the patient has the sensation of frequent urination, urgency, pain and falling down. Continuous renewal of urine in the bladder and frequent urination and rinsing of the urethra are important factors to prevent and reduce urinary tract infection. However, some patients develop the bad habit of holding back urine when working, and some people are even unwilling to drink water to reduce the trouble of going to the toilet, which can undoubtedly increase the chance of recurrent urinary tract infection.