Nipple cracking often occurs during breastfeeding and is a superficial ulcer or erosion of the nipple skin, sometimes with a deep circular fissure along the base of the nipple, sometimes with a vertical crack that splits the nipple in half. The nipple areola is rich in sensory nerves and breastfeeding is very painful when the nipple is cracked. Local pain can also be caused by crusting after the discharge from the fissure dries. The name of the disease was first mentioned in the Qing Dynasty’s “Ulcerology Tips”: “nipple wind, dry and cracked nipples, pain like a knife, or wipe the bleeding, or flow of mucus, or yellow fat. The clinical characteristics of this disease are accurately described. In addition, if accompanied by nipple eczema, it also needs to be differentiated from eczema-like breast cancer, which mostly occurs during the non-lactation period. The specific maintenance measures for cracked nipples can be found in the following methods: 1. local local hygiene, clean the nipples with warm saline before and after breastfeeding; 2. change underwear regularly, keep underwear dry and clean; 3. egg yolk boiling oil applied externally; (method: boil 2-3 eggs, remove the egg white, mash the yolk in an iron pot and fry over a gentle fire until oil comes out) 4. cod liver oil can be applied externally to the affected area; 5. 5. You can also use equal parts of the Chinese medicine Wu Bei Zi and Wu Wei Zi to grind, add a little ice chips and sesame oil to make a burnt form and apply it to the affected area. The actual fact is that you will be able to get a lot more than just a few of the most popular and most popular items. If the more serious nipple inversion, you should consult a breast surgeon before pregnancy, if necessary, can be surgically corrected; 10. If the nipple crack has been combined with infection, should go to the hospital breast surgery consultation.