The main causes of pain in the left chin of the neck when pressed are generally common and include the following conditions First, local sebaceous cysts and infections, blockage of skin follicles, can form chronic or acute inflammation in the local area, and accompanied by obvious pressure pain. At this time, the patient can apply 0.5% vital iodine or gold ointment topically, and the sebaceous cysts with mild symptoms can be absorbed by themselves. For sebaceous cysts with abscess formation, surgical incision and drainage of the abscess is needed to control the local infection, and the pain symptoms can be significantly relieved. The patient will have difficulty in opening the mouth, so it is necessary to improve the local X-ray or CT examination as soon as possible to clarify the specific situation of the fracture, and if necessary, it is necessary to perform internal fixation to solve the symptoms of pressure pain on the left side of the chin.