Seven month old baby is always dry heaving is usually throat by external stimulation, stomach is not well developed and other physiological factors, as well as indigestion, laryngitis and other pathological factors. 1. physiological factors: seven months baby always dry heaving may be due to eating hands or supplemental food is too large and so on to cause throat irritation, as well as due to the stomach is not well developed to eat too much, or high leg lifting and so on to cause food reflux and so on the situation caused by the situation. 2. Pathological factors: seven month old baby is always dry heaving may also be due to certain diseases. Due to improper feeding and other conditions caused by indigestion, as well as due to infections caused by laryngitis and other diseases can lead to seven months of the baby is always dry heaving. There may be other reasons why your seven-month-old baby is always dry heaving, so it is recommended that you go to the hospital in time, complete the examination to determine the cause of the disease, and then give targeted treatment or treatment under the guidance of the doctor.