With the onset of winter, we often see children who come to the clinic with “neck pain and lopsidedness”. When we asked him about his medical history, we found that he had a cold, fever and sore throat 10 days ago. This morning when he woke up, he suddenly had neck pain, and his neck was tilted to one side and could not be turned. After our examination, he was diagnosed with atlantoaxial subluxation. After two weeks of traction treatment, the child recovered and was discharged. There are seven cervical vertebrae in the human body, and the top two are the atlas and the cardinal vertebrae, which form the atlantoaxial joint. The atlantoaxial joint is close to the pharynx. After an upper respiratory tract infection, inflammation in the pharynx may spread to the atlantoaxial joint, resulting in ligamentous laxity and subsequent subluxation of the atlantoaxial joint, which mainly manifests as pain in the neck and inability to turn the neck. In addition, trauma to the head and neck, high pillow, and atlanto-axial dysplasia can also cause atlanto-axial subluxation. A cervical spine X-ray in the open position or a cervical spine CT examination is required for diagnosis of this disease. Atlantoaxial subluxation requires hospitalization for traction treatment. We perform bedside traction with a jaw-occipital belt, which is usually 1.5 to 2 kg in weight for pediatric patients, for a total of two weeks. The cervical brace is then worn for 4 weeks and may be removed after outpatient review if recovery is good. Pediatric orthopedics Ⅱ* scoliosis specialist Dr. Song Xiangjian, chief physician, suggests that parents: pay attention to the prevention of colds in winter and spring; children with neck pain, can not turn, to come to the regular hospital pediatric orthopedics consultation, to avoid incorrect treatment triggered by more serious injury.