Excessive vomiting in newborns may be due to a shorter esophagus and a relaxed lower esophageal sphincter, which is a normal phenomenon, but it is necessary to rule out gastrointestinal inflammation or congenital gastrointestinal diseases. It is recommended to change diapers with slow movements, hold the baby upright after feeding and gently pat the back to reduce vomiting. It is suggested to consult a doctor for a gastrointestinal examination to confirm the diagnosis and provide symptomatic treatment.