Disease analysis: suggestion: 1. Indirect nasopharyngoscopy (1): This is a simple, rapid and effective examination method. (2) Fiberoptic nasopharyngoscopy: This method is relatively simple, but the observation of posterior nostril and anterior parietal wall is not ideal. We can observe the retronasal foramen, nasal septum, posterior nasal cavity, nasopharyngeal sidewall, eustachian tube, lateral fossa, posterior wall of soft palate and so on. Second, the clinical examination of nasopharyngeal carcinoma should not only check the nasopharynx, nasal cavity and oropharynx, but also check whether there is metastasis in the head and face, regional lymph nodes and various systems of the whole body. (1) Head and neck examination: The nasal cavity, oropharynx, external auditory canal, tympanic membrane, orbit and soft palate should be examined for the outward spread of nasopharyngeal carcinoma. (2) Eyes: common vision loss or disappearance, exophthalmos, orbital mass and ptosis with fixed eyeball. (3) Brain Nerve: The local spread of nasopharyngeal carcinoma often causes brain nerve damage, thus causing various neurological disorders in the head and face. Third, X-ray examination of patients with nasopharyngeal carcinoma Through X-ray plain film examination, we can know the tumor range and skull base bone destruction, which is conducive to staging nasopharyngeal carcinoma, making radiotherapy plans, following up patients and evaluating prognosis. The commonly used X-ray examination includes lateral nasopharyngeal film and cranial film. Radionuclide bone imaging diagnosis Radionuclide bone imaging diagnosis is a noninvasive and highly sensitive diagnostic method. It is generally believed that the positive coincidence rate of bone scanning in the diagnosis of bone metastasis is 30% higher than that of X-ray film, and the focus can be found 3-6 months earlier. Five, CT examination