Mandibular open decompression surgery is commonly used for the treatment of mandibular cysts, which is less invasive, has a lower rate of intraoperative and postoperative complications, and is overall safer compared with traditional open surgery. Cyst curettage and mandibular resection are the traditional methods of cyst treatment, but the resection area is large, which is not favorable to the patient’s postoperative recovery, and is prone to lead to complications such as bone defects and dental defects. In contrast, open window decompression surgery has a smaller incision and a smaller flap area. Moreover, open reduction does not require complete exposure of the cyst, which avoids the removal of bone on the surface of the cyst, retains bony support for the gingival flap, shortens the healing time, and avoids infection. It is recommended to go to the hospital to receive regular professional treatment.