The causes of hidden pain at the junction of chin and neck mainly include the following aspects: Firstly, it is considered to be caused by the enlarged lymph nodes at the junction of chin and neck. The junction of chin and neck is distributed with cervical lymph nodes, and if the cervical lymph nodes are reactive and enlarged due to the recent decrease in body resistance, it will cause hidden pain at the junction of chin and neck. For this kind of pain, it can be significantly relieved by taking antibacterial drugs as well as drugs to activate blood circulation, remove blood stasis and disperse nodes. Secondly, it is considered to be caused by inflammation of the oral cavity or suppuration of the tonsils, which leads to vague pain at the junction of the chin and neck. It can be clarified by going to the quintuplegia department of the hospital and performing laryngoscopy, etc. It is necessary to take drugs to clear heat and detoxify the toxins, pay attention to a light diet, and eat less spicy and stimulating food. The third aspect is that the pain is caused by abnormal nerve sensation, which can be treated with nerve-nourishing drugs.