A positive urine test for ketone bodies is considered. It may be due to impaired glucose metabolism due to various causes or starvation, as well as diabetic acidosis when the rate of ketone body production is greater than the rate of utilization, and ketonemia may occur. It is common in diabetic patients with ketoacidosis or in febrile periods such as infectious diseases, sepsis, typhoid, etc. Severe vomiting, starvation, prolonged fasting, and diarrhea may all result in ketonuria. Early pregnancy reactions during pregnancy and eating less also tend to lead to ketonuria with reduced body fat and significantly increased demetabolism. Under normal circumstances the human body examination test is negative, you can further check whether there is any abnormality in blood sugar, if there are no obvious symptoms, you can regularly review and observe the specific situation.