Possible causes of cloudy urine color: First, urinary tract infection. This is the most common cause of cloudy urine, accompanied by urinary tract irritation symptoms, which may include frequent urination, urinary urgency, and painful urination. It may also be accompanied by yellowing of the urine, or the presence of hematuria, etc. Further laboratory tests of the urine or culture tests are needed to confirm the presence of infection. Second, proteinuria can also appear as cloudy urine, and may be accompanied by edema in the limbs or face, or by increased foam during urination. Further quantitative urine protein testing is required to confirm the diagnosis. Thirdly, celiac disease can appear as cloudy urine, and when filariasis is present, there can be a large amount of lymphatic fluid in the urine, which may appear as cloudy, white or milk-like urine. At the same time, it may be accompanied by edema of the lower extremities or changes such as superficial lymphadenitis, which requires filarial examination to further confirm the diagnosis. Fourthly, if you hold urine for a long time or retain urine, you can see a change in the color of urine with slight turbidity. This is mostly seen when there is less drinking, more sweating or prolonged urine retention, or when the disease causes urine retention.