There will be metabolic products in the urine, therefore, the smell of special substances metabolized in some foods can be smelled during urination. When eating some special smell of food, especially some stimulating food, after the body metabolism, these products through the urine excretion will appear food odor. For example, eat more onion, ginger, garlic and other spicy foods, seafood, after drinking a lot of alcohol can appear in the urine after these food flavors, generally do not need special treatment, drink more water to promote excretion can be restored to normal. In addition, some special diseases, such as diabetic patients with ketoacidosis, can appear in the urine flavor of rotten apples, which belongs to a pathological phenomenon, it is recommended to immediately consult a doctor to clarify the cause of the disease under the guidance of the treatment.