If the patient has nausea and dry vomiting, it may be related to the following diseases: 1, gastroesophageal reflux, patients with gastroesophageal reflux will be damaged by the function of the esophageal sphincter, excessive secretion of gastric acid, gastric acid will reflux into the esophagus, causing nausea, dry vomiting and other symptoms. This situation needs to be treated with drugs that inhibit acid secretion and protect the gastric mucosa. 2. pyloric obstruction, this type of patients usually have underlying diseases, such as gastric ulcer or duodenal ulcer. As the pylorus is obstructed by scar tissue, it will cause food reflux, resulting in nausea, dry vomiting. 3, chronic pharyngitis, especially like some men who smoke, more likely to have chronic pharyngitis, in the morning when you wake up, easy to nausea, dry vomiting and other situations. If the symptoms of nausea and vomiting are more serious, you also need to go to the hospital in time for treatment.