The feeling of nausea in the throat may be a symptom of pharyngitis, reflux pharyngitis, postnasal drip syndrome, but this symptom alone is not enough to diagnose the disease, and it is recommended that the patient consult a doctor in time to find out the cause of the disease. 1. Pharyngitis: When there is inflammation in the pharynx, the posterior wall of the pharynx and the root of the tongue often have lymphoid follicle hyperplasia, and there is a large amount of secretion oozing out, and the secretion repeatedly stimulates the throat, resulting in the patient’s pharyngeal reflexes being sensitive to nausea, vomiting, and other related manifestations. It may also be accompanied by pharyngeal discomfort such as pharyngeal foreign body sensation, pharyngeal dryness and pharyngeal burning sensation. 2. Reflux pharyngitis: reflux and heartburn are the most common symptoms of this disease. When stomach acid refluxes into the throat, the symptom of nausea in the throat can occur. 3. Postnasal drip syndrome: when this disease attacks, there is often snot from the nasopharynx into the throat, causing foreign body sensation in the throat nausea, dry heaving discomfort. In addition to the above factors, other factors can not be ruled out. It is recommended that patients go to the hospital as soon as possible for examination by the doctor to clarify the cause of the disease, and then give targeted treatment.