Since the neck is the most common site for tumor development and lymph node metastasis in the upper body and head and neck, it should be included in all treatments (especially radiation therapy). Since the neck includes important blood vessels and nerves and is rich in small muscle groups, once radiation injury occurs, the symptoms are often soft tissue fibrosis of the skin, resulting in difficulty in movement and lymphoma and edema of the head and face. Injury to the recurrent laryngeal nerve (hoarseness, choking and coughing). Skin breakdown, deep into the great vessels causing hemorrhage leading to death. After radiation injury to the epiglottis alone, there is hypokinesis of the epiglottic cartilage, causing dysphagia and choking. The principle of treatment after radiation injury to the neck is still early, especially after the appearance of ulcers and symptoms of nerve damage. In the early stages of nerve injury, the fibrotic tissue around the nerve fibers can be surgically removed and covered with a good skin flap, which can promote nerve nutrition and restore nerve function. In contrast, ulcers should be repaired as early as possible to avoid serious complications.