Gastroscopy can not find out the problems of the throat, gastroscopy, when passing through the throat experienced doctors may incidentally look at the problems of the throat, may collect pictures, but only a cursory look at the throat. Want to check the throat in detail need to see the Pentacenter, to perform fiberoptic nasopharyngolaryngoscopy, electronic gastroscopy is mainly to check the esophageal mucosa, gastric mucosa and duodenal mucosa for the presence of lesions as well as specific lesions. Gastroscopy is mainly through the oral cavity into the mirror, and nasopharyngolaryngoscopy is through the nasal cavity into the mirror, laryngoscopy can be a detailed look at the pharynx, the vocal cords of the situation, there are problems can also be carried out under the microscope treatment, and so on, the specifics can be consulted with a specialist.