To prevent nipple invagination, the following aspects need to be taken into account: 1. Genetic aspects: Any woman with nipple invagination in her mother, aunt and other immediate family members should be the focus of prevention. After the birth of a baby girl with a genetic predisposition, the mother can gently lift the small nipple outward 1-2 times a day. The movements must be gentle, and it is best to ask an experienced person to do this. After a few lifts, you can see that the baby’s nipples are green bean-shaped or small round pieces higher than the skin, then the chance of future nipple inversion is greatly reduced. 2, pay attention to clothing: intimate underwear should be cotton products, and frequent changes, sunlight exposure. If your nipples are red and cracked, your underwear should be steamed and disinfected, and your brassiere should not be used too early or too tight, so that you can effectively avoid nipple invagination. 3, to prevent extrusion: underwear, bra appropriate, not too tight, for the larger breast girls, more attention should be paid to the breast loose. For girls who have the habit of lying down, they should be corrected in time to prevent the nipples from being squeezed, so as not to aggravate the degree of nipple invagination.