Nasopharynx and oropharynx are two components of the pharyngeal cavity, which are divided by the plane of the free edge of the soft palate, and the nasopharynx is the nasopharynx from the base of the skull and the oropharynx is the oropharynx from the upper edge of the epiglottis. 1. Nasopharynx: Nasopharynx is in the posterior part of the nasal cavity, the space from the base of the skull to the plane of the free edge of the soft palate is the nasopharynx. Nasopharynx in front of the posterior nostril, above the body of the pterygoid bone, the posterior slope and the first two sections of the cervical vertebrae are connected, and below the plane of the free edge of the soft palate, which is a common region for diseases such as nasopharyngeal carcinoma, nasopharyngitis, and so on. 2. Oropharynx: The oropharynx is from the plane of the free edge of the soft palate to the lower part, reaching the root of the tongue and the free edge of the epiglottis. When an individual swallows, the soft palate is completely raised, and its lower closed space is the oropharynx, which is commonly affected by acute and chronic tonsillitis. If the pharyngeal cavity inflammation, should promptly go to the hospital for examination, to clarify the site of the lesion, as soon as possible to carry out targeted treatment.