The common causes of dry heaving in a 7-year-old child include laryngitis, gastroenteritis, gastroesophageal reflux, and so on. 1. Laryngitis: children with laryngitis are often accompanied by coughing, sore throat, difficulty swallowing, etc., may be irritated by eating pharyngeal discomfort dry heaving. 2. Gastroenteritis: often accompanied by abdominal pain, bloating, diarrhea, vomiting, indigestion and other manifestations. 3. Gastroesophageal reflux: accompanied by abdominal pain, heartburn, epigastric burning sensation, belching, nausea and other discomforts. 7-year-old child eating old dry heaving, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.