Hiccups in newborn babies can be caused by improper feeding and diseases. 1. Improper feeding: newborn babies hiccups all the time may be related to daily improper feeding, such as babies eat milk too quickly, eat the milk is cold, eat too much milk, etc., are prone to cause diaphragmatic spasm, so that babies hiccups all the time. 2. Disease: Newborn babies have hiccups all the time, but also consider that they suffer from diseases, such as gastroesophageal reflux, esophageal hiatal hernia, etc., affected by the disease, newborn babies will have hiccups. Parents are advised to hold their newborn babies upright for a while after eating and pat their backs to relieve hiccups. If your newborn baby has hiccups all the time and they are more serious, you need to take him/her to the hospital.