The three circumferences refer to the body’s chest circumference, waist circumference and hip circumference, and the three together are also known as the three circumferences. Three circumference is the chest, waist and hip circumference, chest circumference is the body in the state of calm breathing, through the nipple point of the horizontal circumference of the chest. Waist circumference is measured at the end of expiration and the beginning of inhalation, the horizontal circumference of the umbilical center or the circumference of the midpoint between the lowest point of the ribs and the upper edge of the two horizontal lines of the iliac crest. Hip circumference is the horizontal circumference of the most prominent part of the buttocks backward. The human body’s circumference is the core factor of the body’s curvature, the circumference is just a kind of appearance of the body, no matter how the circumference, the body is healthy is important, do not overdiet for the three circumference or excessive exercise exercise. To master the correct measurement method, in order to be able to accurately understand the value of three-dimensional.