Spitting up milk in the form of bean curd may be caused by physiological factors such as overfeeding, or it may be caused by pathological factors and should be treated actively. 1. Physiological factors: If the child only spits up occasionally and has no other discomfort, it may be caused by overfeeding, possibly related to the child eating too much as well as eating too fast, resulting in the stomach not being able to fully digest. The child does not have a sense of fullness, so will not actively stop drinking milk, parents need to judge. 2. Pathological factors: the child is cold or irregular diet unclean, it may cause indigestion, or even cause acute inflammation of the digestive tract, induced by spitting up, vomit may be accompanied by white tofu dregs-like milk residue. When the child often spit up, parents are advised to take the child to the regular hospital pediatrics to receive examination and treatment as soon as possible, do not use drugs privately, so as not to cause danger.