There are several possible reasons for the odor of male urine: firstly, it is related to diet. Eating food with special odor, such as eating a lot of onions, garlic, durian, etc., may cause abnormal odor when urinating, mostly slightly the same as the dietary odor. After stopping the relevant food intake, the odor can gradually disappear. Secondly, when there is a purulent infection of the urinary tract, there can be an abnormal odor of urine. Such as fishy smell, pus smell, accompanied by frequent urination, urinary urgency, urination pain, and the discharge of urine is not clear for the turbid state, which contains flocculent, feathery precipitate, serious patients can also be manifested as a whitish urine, pus urine change. Need to carry out routine urine examination, urine culture examination, determine the positive early anti-infection treatment. Third, the emergence of internal diseases, such as diabetes ketoacidosis, there can be an abnormal odor in the urine, such as rotten apple flavor. Such as taking organophosphorus pesticide poisoning, can appear in the urine with garlic flavor.