The thickening of the posterior wall of the nasopharynx is mainly considered in two aspects: first, inflammatory hyperplasia, often due to inflammation of the nasal or pharyngeal cavity, which is particularly likely to involve the nasopharynx, causing mucosal congestion and inflammation, so it will lead to thickening of the posterior wall of the nasopharynx, the patient will have nasopharyngeal discomfort, sometimes there will be pain, burning sensation and even foreign body sensation, in terms of treatment, it is recommended to take oral nasal Yuan Tongjiao granules and In terms of treatment, it is recommended to take oral nasal abscess and nasal rinse treatment with physiological saline. Secondly, nasopharyngeal cancer is a malignant tumor, which mainly invades the mucous membrane of the posterior wall of nasopharynx, resulting in thickening of the mucous membrane and sometimes even obvious bulge, nasal congestion, even blood in the nasal aspirate and stuffy ear, which need to be diagnosed by pathological biopsy.