The presence of ketone bodies (+) in the urine test indicates that the body itself has an increased rate of fat metabolism, excessive fat consumption leads to an increase in blood ketone bodies, and ketone bodies are continuously excreted from the urine and the symptoms appear, which can occur in individuals on long-term dieting or malnutrition and will not affect the life of individuals, so a reasonable diet is sufficient. Kidney insufficiency or renal failure, uremia, and decreased glomerular filtration rate can occur, and a kidney ultrasound should be performed in a timely manner to identify the cause, followed by symptomatic treatment. With reduced kidney function, various substances in the body tend to leak out from the glomerulus, and even hematuria occurs, which can affect life safety in serious cases and requires timely treatment. Symptoms of dizziness, weakness and drowsiness in the presence of urinary ketone bodies indicate diabetic ketoacidosis, which requires timely blood sugar control.