Jaw pain is not necessarily caused by cancer. The most common cause is local injury and inflammation, usually accompanied by local skin redness, swelling and congestion, and secondly, the possibility of chin pain caused by malignant lymphoma is not excluded, mostly accompanied by local obvious lumps, and local skin ulceration and congestion can also occur. If there is prolonged jaw pain, it is recommended to go to the stomatology department of the hospital, through local physical examination and film or MRI examination, to clarify the specific cause, and then further targeted treatment.