Early yellow-brown urine may be caused by drinking too little water, urinary tract infection, liver or kidney disease. 1. Drinking too little water: If you drink too little water, it will lead to the deepening of the color of the urine after it is concentrated, thus appearing yellowish-brown, you should drink more water and urinate diligently to restore the normal color of the urine. 2. Urinary tract infection: when bacteria and other pathogens invade the urethra, they can multiply and grow in the urinary system, and the formation of a large number of bacteria can cause abnormal urine color, which needs to be clarified by urine routine and urine culture, and can be treated with drugs such as levofloxacin. 3. Liver or kidney disease: when there is hepatitis, cholecystitis, nephritis and other diseases, there will also be urine color abnormalities, you can carry out liver function, kidney function, hepatitis B five tests to further clarify, under the guidance of the doctor to use medication, such as interferon, entecavir, cotrimoxazole and so on. If the urine is yellowish-brown for a long time and there are other symptoms, you should consult a doctor as soon as possible, and the medication should be applied under the guidance of a doctor, so as to avoid blindly using medication.