Nausea and dry heaving in children may be related to improper diet, indigestion, gastroesophageal reflux and other factors. 1. Improper diet, if the one-time eating too much or eat too fast may lead to increased intestinal gas, so there will be nausea and dry heaving symptoms. 2. Indigestion, if the child has indigestion, intestinal peristalsis is affected, which may lead to gastrointestinal discomfort, nausea and dry heaving symptoms. 3. Gastroesophageal reflux, if there is gastroesophageal reflux, food is not fully digested, reflux into the throat, may cause irritation to the throat, this symptom. Children eat nausea and dry heaving, there may be other reasons, it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.