The cause of pulling milk flaps may be caused by overfeeding of infants and young children, indigestion of infants and young children, and mother’s diet is too greasy, and so on. 1. Infant overfeeding: If you don’t feed your baby regularly, and if you feed your baby as soon as he cries, it’s especially easy to overfeed him, which leads to the child not being able to absorb it, so he can only excrete it, and then he has to pull out the milk petals. 2. Infant indigestion: infant intestinal system development is not yet perfect, if you feed the food in the protein content is high, and formula with unreasonable, improper brewing, it is easy to lead to infant indigestion, which appeared to pull the milk petal situation. 3. Improper diet of the mother: when the mother consumes too much fat or protein, these substances may be converted into milk and absorbed by the infant, which may exceed the limit of digestion and absorption of the infant, resulting in the situation of milk flaps. There may be other reasons for the milk flaps, so it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.