intercostal neuralgia refers to the recurrent pain in the innervation area of one or several intercostal nerves. Sometimes it gets worse, sometimes it is stimulated by breathing, and the pain gets worse when coughing and sneezing. When the pain is severe, it can radiate to the shoulder or back of the same side, sometimes in a strip distribution. During the examination, we can find the hypersensitivity of the corresponding skin area and the tenderness of the corresponding rib edge, especially in the back, chest side wall and chest after the intercostal nerve passes through the intervertebral foramen. Some patients can find the corresponding symptoms and signs of various primary diseases. It is one of the common causes of chest pain in middle-aged and elderly people. According to the cause of disease, intercostal neuralgia is usually divided into primary and secondary intercostal neuralgia. Primary intercostal neuralgia caused by infectious or toxic reasons is rare. Most of them are caused by the stimulation and compression of thoracic nerves caused by the pathological changes of adjacent organs and tissues, such as pleurisy, chronic lung inflammation, aortic aneurysm, thoracic vertebra degeneration, thoracic vertebra tuberculosis, thoracic vertebra injury, thoracic spinal dura mater, senile spinal osteoarthritis and other diseases. Therefore, there is a pathological form dominated by root intercostal neuralgia. Intercostal neuralgia can generally be diagnosed according to symptoms, and ordinary X-ray plain film is only useful for differential diagnosis. The secondary intercostal neuralgia needs chest X-ray, chest X-ray and lumbar puncture. In addition, B-ultrasound and electrocardiogram are needed to rule out hepatobiliary, cardiovascular and pulmonary diseases. Clinical manifestations: 1. Pain is characterized by paroxysmal stabbing pain or burning pain along a certain intercostal nerve, which is aggravated when coughing, sneezing and taking a deep breath, with unilateral single branch as the most.