The development of a girl’s breasts usually begins at the age of 9-10 when the nipples begin to grow, and at the age of 10-11 when the breasts begin to enlarge, forming a nucleus, a nodule or a small hard lump that is painful to the touch and will gradually disappear by the time she reaches puberty. 12-13 years old, the ducts and subcutaneous fat gradually increase, the breasts gradually bulge and become more elastic, and the color of the areola and nipple will The color of the areola and nipple will gradually deepen. In general, the early and late development of breasts is related to the height, diet and nutrition of the individual. Girls around the age of 10 can pay attention to the food to promote the fullness of the breast, generally is rich in protein food, and starchy pumpkin, sweet potato, and rich in vitamin B, vitamin C food and green vegetables, citrus fruits, you can also eat more papaya. Zinc is a catalyst to promote human growth and development, breast and especially sexual characteristics and sexual function.