If a 4-month-old baby spits up more, consider the following reasons: 1, the baby’s digestive system is not well developed, the stomach is horizontal, the capacity is small, the cardia sphincter is relaxed, the intake of milk is slightly more, there will be spitting up, as the age will gradually reduce, 7-8 months will improve. 2, improper feeding, too much milk, too fast and improper posture of feeding can cause spitting up, to control the amount of milk, after feeding The baby should not be flattened immediately after feeding, but should be erected and gently patted on the back to make the baby burp, so that it is not easy to vomit. 3, cold intestines, cold intestines can cause gas and vomiting, hot compresses or clockwise massage of the abdomen can relieve. 4, deformities of the digestive system, such babies vomit severely and develop thin, should go to the hospital for examination and clear diagnosis. 5, intestinal infections, intestinal infections caused by viruses and bacteria can cause Vomiting, to actively control the infection, give rehydration. 6, other diseases also accompanied by vomiting, such as pneumonia, encephalitis, etc., should actively treat the original disease. If your baby has severe vomiting, do not use drugs blindly, but go to a regular hospital for examination and give treatment after a clear diagnosis.