The main symptoms of urinary tract infection are urinary tract irritation, abnormal appearance of urine, and systemic symptoms. There are many diseases included in urinary system infection, and the common ones are cystitis, urethritis, pyelonephritis and so on. 1. Urinary tract irritation: mainly manifested as frequent urination, urinary urgency, painful urination, increased nocturia and other symptoms. 2. Abnormal appearance of urine: urinary system infection, inflammation stimulation, may cause the appearance of cloudy urine, urine inside the floaters, or purulent secretions, or even blood in the urine, blood clots, the appearance of hematuria and other symptoms. 3. Systemic symptoms: acute inflammation may also cause fever, fatigue, nausea, vomiting, limb pain and other symptoms. Urinary tract infection may have other symptoms, it is recommended to first go to the hospital for examination and treatment as prescribed by the doctor.