Sinusitis and shallow pharyngeal crypts may be related. The pharyngeal crypt is located in the nasopharynx. When there is sinusitis, the inflammatory factor stimulation may cause acute inflammation in the nasopharynx and lead to shallow pharyngeal crypts. Common causes of shallow pharyngeal crypts include inflammation of the nasopharynx and tumors. 1. Inflammation of nasopharynx: Inflammation can lead to edema and hyperplasia or even abscess of mucosa and submucosa, which can lead to shallow pharyngeal crypt. 2. Tumor in nasopharynx: when the tumor is closely related to the pharyngeal crypt, it can lead to shallow or full pharyngeal crypt. Sinusitis can lead to shallow pharyngeal crypt, but the occurrence of sinusitis and shallow pharyngeal crypt are not related. Sinusitis is often associated with upper respiratory tract infections. If an acute infection is left untreated, it can lead to chronic sinusitis. If you have sinusitis or shallow pharyngeal crypts, you should actively seek medical attention, systematic examination to clarify the cause of the disease, and treatment under the guidance of the doctor.