If men have odor in urine, there are possible causes: 1. When consuming food containing foreign substances, such as onion, garlic, durian, etc., urination can have an odor within a short period of time after consumption, usually related to the diet, it is recommended to stop the relevant odorous diet and observe whether the odor of urination still appears. 2. When urinary system infection occurs, there is a large number of bacteria and pus cells in the urine, urination can produce a clear odor In addition, the odor is relatively heavy and accompanied by symptoms such as cloudy urine or discomfort in urination. In this case, a urine specimen should be taken for laboratory examination to confirm the presence of infection, and drug anti-infection treatment is required. 3, patients suffering from medical diseases, such as diabetes or ketoacidosis, cirrhosis and other diseases, there may be a large number of ketone bodies and bilirubin in the urine, resulting in a special odor when urinating, such as the smell of rotten apples or a fishy smell, it is recommended to go to the hospital for relevant examinations It is recommended that you go to the hospital for relevant tests to determine if you have other medical conditions.