Alcohol odor in urine may be caused by physiological factors, excessive alcohol consumption, diabetic ketoacidosis and so on. 1. Physiological factors: If there is no history of alcohol consumption, but in the process of urination, the smell of alcohol, may be a long time too little water, so that the concentration of urine due to the change in the smell of urine; may also be a recent diet to eat too much high-protein food caused by. 2. Drinking too much alcohol: If there is a large amount of alcohol consumption before urination, it may lead to alcohol into the gastrointestinal tract, and not be able to be completely metabolized by the liver, and thus will be excreted with the urine, so the urine will smell of alcohol. 3. Diabetic ketoacidosis: If you have a history of diabetes and do not regularly monitor your blood glucose and take hypoglycemic drugs for treatment, your blood glucose will rise, causing diabetic ketoacidosis. Therefore, the smell of alcohol after urination may be caused by the production of ketone bodies. This symptom may also be caused by other factors, it is recommended that patients go to the regular hospital in time for treatment, and strive for early recovery.