The most common cause of garlic odor in urine is organophosphorus pesticide poisoning, which can have the odor of garlic when urinating if there is a history of related poisoning and requires immediate medical attention for resuscitation treatment. However, if there is usually no history of any organophosphorus pesticide exposure to the smell of garlic in urine, this may be due to the consumption of garlic, shallots, etc., which can cause a transient garlic smell. This condition usually has a clear dietary history and the garlic odor can disappear after stopping the related food intake, without any treatment just need to drink more water appropriately. The odor of urine generally reflects the metabolic status of the body. For example, fresh urine has an ammonia odor, which is due to the presence of certain volatile esters in the urine itself, thus causing the ammonia odor. When there is diabetic ketoacidosis, the odor of rotten apples can be present. When there is a urinary tract infection, a foul odor can be present. When there is diabetes mellitus present there can even be an abnormal sweet smell in the urine.