What are perfect breasts? Since you want to know about breast augmentation surgery, it is certainly important to know what the surgery can bring to you. Then first of all, we need to know what is the judging standard of perfect breasts. 1 The ratio of breast shape 2 The ratio of breast circumference to other parts of the body. 1, the bust should be proportional to the body, too big or too small is a loss of beauty. In general use the height (cm) multiplied by 0.53, the resulting number is more suitable for the size of the bust, that is, the golden ratio. For example, for a 165 cm tall woman, a bust size of around 87.45 cm is good. 2, in addition to the size of the bust, the shape of the breast is also important, the perfect breast should be full, round, elastic, from the side should look high and slightly upturned. 3, the size and height of the two sides of the breast should be basically symmetrical, the breast axis line and the angle of the chest wall is almost 90 degrees 4, the nipple areola should be clearly defined with the skin of the breast, nipple protrusion is not sunken, cylindrical slightly upward, and the color is pink. The distance between the two nipples should be greater than 20cm and form an equilateral triangle with the midpoint of the sternal stalk cut. 5, the breast is hemispherical, and the diameter of the base of the breast is 10-12 cm.