The main symptoms of GERD are pain, burning sensation and cough. 1. Pain: It is mainly manifested as chest pain and epigastric pain, which is caused by the irritation of gastric reflux to the esophagus, and sometimes the pain radiates to the precordial area, back and shoulders. 2. Burning sensation: It is mainly caused by the stimulation of the esophagus by gastric reflux, which leads to the burning sensation at the back of the sternum, and sometimes the local burning sensation due to the stimulation of the pharynx. 3. Cough: It is mainly due to the reflux contents flowing to the pharynx, the local stimulation caused by the cough, especially at night, the cough is more obvious. This is an extra-esophageal manifestation of GERD. GERD may also cause nausea, belching, dysphagia and other symptoms. If the above symptoms exist, it is important to consult a doctor in time, make a clear diagnosis and cooperate with the doctor’s treatment.