Hiccups can be caused by improper breastfeeding and indigestion. 1. Improper breastfeeding: If you overfeed your baby, it will affect your child’s digestion and cause hiccups. Or if the baby cries while breastfeeding, it will cause air to enter the body when the baby sucks milk, which will cause hiccups. 2. Indigestion: the function of the digestive system of the baby after birth is imperfect, immature, in the process of development, and after breastfeeding may cause the baby’s gastrointestinal tract slow peristalsis, indigestion, so that the symptoms of hiccups. If the baby hiccups frequently after breastfeeding, then parents should be concerned, and timely to the hospital for medical treatment.