There is a sliding lump in the jaw and mouth it is recommended to hang up with the oral mucosa department or the oral and maxillofacial surgery department, depending on the presentation it could be a mucosal granuloma, cyst or tumor. 1. Oral mucosa department. If there is a history of localized irritating and infectious factors or trauma, and the lesion manifests itself as a reddish swelling or mucosal erosion that bleeds easily, you can first visit the oral mucosa department to check for granulomatous disease. General laboratory examination can be seen microscopic cell morphology division is normal, there are neutrophils plasma cell infiltration. 2. Oral and maxillofacial surgery. If the nodule is hard in texture, can move up and down with swallowing, and is hard to touch, it may be soft tissue cysts caused by abnormal development of the body, such as dermoid cysts or thyroglossal duct cysts, and it may be tumors judging by the texture and composition of the nodule. It is recommended to consult the oral and maxillofacial surgery department first. Nodules may cause numbness or rapid growth of the tongue, affecting oral breathing or chewing, and need to be examined and treated as soon as possible.