Pregnant women are advised not to wear tight clothes during lactation. Wearing a corset for a long time will make the muscles of postpartum mommy tense, affect the physiological function of the body, and also affect the maternal breast milk. Clothes that are too tight at the waist may also affect the blood circulation of our lower limbs. Maternal women should not wear body-shaping underwear too early. They should adopt breast-feeding, increase exercise and eat reasonably, especially insisting on breast-feeding, which can not only play a role in slimming, but also promote the recovery of uterus and help the recovery of body shape.