Mild to moderate nipple inversion in pregnant women can be corrected by pulling exercises, while severe nipple inversion may require surgical methods of correction. Correction during pregnancy is generally not recommended due to the sensitivity of the nipple and excessive stimulation can induce physiologic contractions. Inverted nipples can be corrected before pregnancy or after delivery. 1. Mild nipple inversion, part of the nipple is inverted, the nipple neck exists, the nipple can be protruded by squeezing the nipple with hand, the shape of the nipple is normal, as long as you insist on pulling and squeezing every day, it can be corrected. 2. Moderate nipple inversion, the nipple is completely sunken in the areola, but it can be squeezed out by hand, it is not easy to be corrected by simple pulling, it is recommended to use negative pressure suction method. Nipples can be sucked out during breastfeeding by using a breast pump or cupping device or through sucking by the newborn, utilizing the principle of negative pressure. You can also wear a nipple corrector while sleeping, which will also have a pulling effect for a long time. 3. Severe inverted nipple means that the nipple can not be pulled outward to correct it, and it is usually unable to breastfeed smoothly. Once diagnosed, it is suggested that it should be corrected by surgery before pregnancy as early as possible. Once diagnosed, it is recommended to have surgery before pregnancy to correct it. However, some people who are already pregnant are not able to have surgery to correct it, and those with severe inverted nipple who are unable to breastfeed can use a breast pump to suck out the breast milk and use a bottle to feed the baby. Pregnant women do not need to be too anxious when they have inverted nipples, but if the problem persists, they should consult a doctor.