The causes of pressing pain at the edge of the jaw include trauma, oral infection, soft tissue inflammation, temporomandibular joint disorder disease and so on. 1. Trauma: refers to soft tissue or bone injury caused by knocking or smashing, which is manifested as pressing pain at the edge of the chin, swelling, and limitation of chin movement. 2. Oral infection: mostly seen in oral ulcers, inflammation of the gums, etc., with pressing pain on the edge of the chin and accompanied by redness and swelling of the gums, yellowish-white vesicles on the epithelium of the oral cavity. 3. Soft tissue inflammation: including lymphadenitis, lymphadenitis, etc., which may present with pressing pain at the edge of the chin and enlarged lymph nodes. 4. Temporomandibular joint disorder: it can be caused by eating too hard food for a long time, trauma, bad bite, etc. Typical features are pressing pain in the chin, pain and difficulty in opening the mouth widely, headache or recurrent pain in the neck. In addition, tumors, trigeminal neuralgia, etc. can also cause pressure pain on the edge of the jaw, and this symptom alone cannot identify the cause, so it is recommended to go to a medical institution, complete the relevant examinations, and under the guidance of the doctor’s treatment.