Urinary tract infection is one of the common diseases of the urinary system and a common cause of hematuria. Urinary tract infections are divided into upper urinary tract infections and lower urinary tract infections. Upper urinary tract infection mainly refers to acute and chronic pyelonephritis; lower urinary tract infection mainly refers to acute and chronic cystitis. The common causes of urinary tract infections are bacterial infections, and the common pathogenic bacteria include Escherichia coli, Aspergillus, Bacillus aerogenes, and Klebsiella, among others. Whether it is an upper urinary tract infection or a lower urinary tract infection, hematuria is often a common symptom of them. The cause of hematuria is mainly due to the inflammatory reaction that causes capillary dilation or rupture of the urinary tract mucosa. Once we find hematuria in our life or physical examination is found to be positive for urine occult blood first do not be nervous, first consider whether it is caused by urinary tract infection. Upper urinary tract infection caused by hematuria is often accompanied by fever, lumbago and other symptoms; lower urinary tract infection caused by hematuria is often no fever, accompanied only by urinary frequency, urinary urgency, urinary pain symptoms; if there are the above two symptoms urgent need to go to the hospital to check the urinary routine to clarify the diagnosis. After the diagnosis is confirmed, drink more water to ensure that you drink 2,000-2,500 ml of water daily and urinate regularly, and the symptoms of hematuria will be relieved. At the same time, oral broad-spectrum antibiotic treatment for 3-7 days, or choose sensitive antibiotic treatment according to the urine culture results, more can be cured.