Milk flaps are the presence of undigested food in the stool, which may appear as white granules or milk flaps. Whether or not to change milk powder after eating milk powder with milk petals needs to be judged on a case-by-case basis. If the child has a small amount of milk petals and there is no other obvious abnormality, there is no need to change the milk powder. However, if the child has a large number of milk petals, accompanied by vomiting and other symptoms, to rule out digestive disease factors, you need to change the milk powder. 1. No need to change: If a small amount of milk petals is found in the child’s stool after taking milk powder, but the child is in good mental condition, with no other abnormality, and there is no diarrhea, vomiting, eczema, etc., then the child can be fed normally without changing the milk powder. At this point, you can feed normally and do not need to change the milk powder. 2. Need to change: If the child is not overfed with milk powder, and when digestive diseases are excluded, there are still a lot of milk petals in the stool, even with eczema, vomiting, poor mental state and so on. It is recommended to change the milk powder in time according to the state of the child. When changing milk powder, you should slowly and gradually reduce the amount of milk powder and gradually increase the amount of new milk powder. At the same time, it is necessary to feed a small amount of times to help improve the function of the gastrointestinal tract.