According to China’s body mass index (BMI) healthy weight standard 18.5~23.9 to calculate, 1 meter 74 weight 56kg~72.4kg normal. Body mass index (BMI) is a common indicator at home and abroad, commonly used to assess the degree of obesity. BMI = weight (kg)/height (m)². However, BMI does not take into account visceral fat and fat percentage, which is flawed, and many people who exercise regularly are incorrectly determined to be overweight or obese. In addition, visceral fat is associated with the risk of cardiovascular events and metabolic disorders. In clinical studies, body fat percentage, waist circumference, or waist/height ratio are commonly used to more accurately assess obesity status and visceral fat percentage. The BMI calculation is easy to perform and widely accepted to help understand body status. If the weight fluctuates greatly in a short period of time, it is recommended to consult a doctor promptly to rule out malignant diseases.