Symptoms of urinary tract infection caused by stones mainly include frequent urination, urgency, painful urination, lumbar pain, and hematuria of the naked eye, etc. In severe cases, systemic symptoms such as fever and chills may also occur. According to the different parts of the infection, the clinical symptoms have different characteristics. 1. Urethritis: there may be frequent and urgent urination, but the symptom of painful urination is the most obvious. If there is bleeding from urethral injury, you can see hematuria or positive urinary occult blood in the initial urine. 2. Cystitis: It mainly turns into bladder irritation signs and discomfort in the perineum and bladder area. Urgency incontinence, cloudy urine, hematuria at the end or throughout the urine, or even blood clots may also occur. 3. Pyelonephritis: there may be frequent urination, urgency and pain in urination, hematuria is usually hematuria throughout the whole process, and the special symptom is the swelling and pain in both sides of the waist, and the pressure pain in the angle of the ribs and spine or the pain of percussion is obvious. Systemic symptoms are also more obvious, there can be chills, high fever, headache, nausea and so on. Although the symptoms of urinary tract infection are similar, the site of infection can be inferred according to the characteristics of different symptoms to provide guidance for treatment; treatment must be as early as possible to control symptoms and eliminate infection, and actively deal with the primary disease.