Generally speaking, maxillary sinus cysts do not heal on their own, and it is necessary to choose the appropriate treatment measures according to the size of the cyst and the severity of the disease. Maxillary sinus cyst refers to cysts originating in the maxillary sinus, which are divided into mucous cysts and mucosal cysts. Mucous cysts of the maxillary sinus grow expansively and can cause compression and absorption of the bone of the sinus wall, which can cause facial distension, toothache and nasal congestion. Most mucous cysts are confined to the maxillary sinus and are asymptomatic or have atypical symptoms. For small size and relatively mild cysts, no special treatment can be carried out, although the cysts usually do not disappear on their own, but it will not affect the normal work and life of the patient, but should be regularly to the hospital for follow-up observation. If the volume of cyst gradually increases, serious cases can be complicated with bacterial infection and abscess, which can be manifested as obvious nasal congestion, headache, and even fever and other symptoms, affecting normal work and life. Then endonasal endoscopic maxillary sinus cyst removal surgery is needed. After the discovery of maxillary sinus cysts need to go to the hospital, under the guidance of the doctor standardized treatment.