The possible causes of frequent yellowing of urine include: 1, drink less water, usually patients with insufficient water intake, urine will appear to varying degrees of concentration, it will be manifested as frequent yellowing of urine, after drinking more water, more urination, the yellowing of urine can be improved, while not accompanied by any abnormal feeling of urination. 2, patients with liver disease, excessive bilirubin content in the urine, or have varying degrees of jaundice, can manifest as yellowing of urine. Both can manifest as yellowing of the urine. This can be accompanied by yellowing of the skin mucous membranes, accompanied by weakness and poor mental health, often with a history of liver disease.3. Patients who often use special foods in their diet, such as carrots or vitamins for a long time, can experience yellowing in the urine. After stopping the intake of related foods and drugs, observe whether the urine color returns to normal.4. The presence of chronic infections in the urinary tract can also cause yellowing of urine and cloudy urine, both with the passage of infection or with the presence of uncomfortable symptoms such as frequent urination, urinary urgency and painful urination.