Spitting up may be caused by physiological spitting up or cold, acute gastroenteritis, congenital esophageal stenosis and other causes. According to the cause of the disease, we need to give appropriate warmth and anti-infection treatment. 1. Physiological spitting up: the newborn’s stomach structure is horizontal easy to spit up after eating milk, this situation is normal, don’t be too nervous; baby try to keep 45 degrees when eating milk, don’t shake violently after eating milk, you can burp the baby appropriately. 2. Cold: If the baby’s abdomen is cold, it can also cause gastrointestinal spasms, which can lead to spitting up after eating milk, so pay attention to keep the baby warm. Appropriate use of probiotics such as Bacillus subtilis bacillus granules to regulate the gastrointestinal flora and improve the symptoms. 3. Acute gastroenteritis: if the baby is infected by bacteria or viruses and other infections can easily cause the occurrence of acute gastroenteritis, when the baby is prone to nausea and vomiting after eating, diarrhea and other symptoms; to bring the baby to the hospital as soon as possible, if the bacterial infection can be given under the direction of the doctor anti-infective drugs such as cephalosporins antibiotics, antidiarrheal medicines such as montelukast, etc. Symptomatic treatment. 4. Congenital esophageal stenosis: newborns with congenital esophageal stenosis are prone to vomiting after eating, as food cannot pass through the esophagus. In this case, the baby should be taken to the hospital as soon as possible for treatment such as surgery. If your baby is spitting up regularly, you should take him to the hospital as soon as possible to find out the cause and give him targeted treatment. All of the above medications should be used under the guidance of a doctor, avoid self-medication.