The cloudy urine may be caused by physiological factors such as drinking too little water and strenuous exercise, or it may be caused by cystitis, glomerulonephritis and other diseases. 1. Physiological factors: if you drink too little water, strenuous exercise, will lead to too little water in the body, the urine concentration of the situation, manifested in the last cloudy urine. If the patient does not have symptoms of physical discomfort, it is a normal phenomenon, no need to worry too much. 2. Cystitis: Cystitis may be caused by pathogen infection, drugs, chemicals, active sex life, low immunity and other factors. Patients mainly manifested as frequent urination, urinary urgency, urinary pain, pus, cloudy texture of urine, etc. Patients may appear to have cloudy urine at the end. 3. Glomerulonephritis: The causes of glomerulonephritis include pathogen infection, overwork, improper diet and so on. Patients may have symptoms such as hematuria, proteinuria, high blood pressure, etc., and some of them may have cloudy urine. There are many other causes of cloudy urine, so it is recommended that patients go to regular hospitals to find out the cause of the problem and get timely treatment.