The milk from the nipples is transported by the milk ducts, which are arranged in 10-15 rows in the shape of spokes. Below each row of milk ducts are attached the milk transport pouches, which are the main site of milk production. A nipple has about 10-15 rows of major milk duct openings that allow milk to escape. After the milk is discharged, it needs to be cleaned so that the nipple surface is kept clean and the milk ducts are not clogged, which will provide better breastfeeding. If the nipple duct outlet is blocked, it will cause milk stagnation and inflammation of the breast will affect breastfeeding. Therefore, it is very important to pay attention to the cleanliness and hygiene of the nipples, so that you can effectively prevent the occurrence of mastitis and better breastfeeding.