Babies eating complementary food to spit out may be cooking problems, at this time need to pay attention to food cooking; may also be related to indigestion and so on, usually can be general treatment and drug treatment. 1. Problems with food cooking: If the food is not cooked, rotten, or too light in taste, it may lead to babies spitting out when they eat complementary foods. Parents need to pay attention to the need for adequate steaming during the food cooking process to ensure that the food is cooked through; in addition, they need to pay attention to changing the types and shapes of foods to arouse the baby’s interest in eating, which may improve the above situation. 2. Indigestion: In the process of making complementary foods, the temperature is too low or a variety of complementary foods are added in a mixture, which exceeds the adaptive capacity of the baby’s digestive system, and may lead to indigestion, resulting in babies vomiting out of their complementary foods. Parents can usually give their babies probiotics to regulate, such as Bifidobacterium bifidum, Bacillus subtilis bifidus granules and so on. Those who are allergic to the above medicines are not allowed to use them. If your baby spits up after eating complementary foods, it is recommended to go to the hospital for standardized treatment in time to avoid delaying the condition. All of the above drugs should be used under the guidance of a doctor, avoid self-medication.