Transparent urine like tap water may be caused by physiological factors, diabetes, uremia and other factors. 1. physiological factors: frequent drinking of large quantities of water, urine production increased, more water in the urine, will make the urine transparent state, accompanied by an increase in the number of urination, control of drinking water can gradually return to normal. 2. Diabetes: may be related to genetic, excessive obesity and other factors, can lead to high sugar content in the urine, and accompanied by thirst and drinking and other symptoms, will be frequent urination, will discharge colorless transparent urine, accompanied by fatigue and other symptoms. 3. Uremia: When suffering from uremia, it can lead to abnormal levels of antidiuretic hormone in the body, which may lead to frequent urination as well as drinking a lot of water, resulting in transparent urine, which may be accompanied by extreme thirst, dry skin and other symptoms. Transparent urine like tap water, and accompanied by other abnormal manifestations, should be alert to disease factors, it is recommended to consult a doctor for examination and treatment.