Examination and laboratory tests: vertebral artery insufficiency treatment: after a course of treatment can walk a distance medical history: there was no problem before although can walk the road but the head has been a little dizzy and numbness numbness half of the body how to pinch do not hurt do not know if it can be cured? Dorsolateral medullary syndrome (Wallenbergsyndrome) is a relatively common disease of the brainstem lesions, lesions located in the dorsolateral region of the superior medulla oblongata. The common cause is thrombosis of the posterior inferior cerebellar artery or vertebral artery. The manifestations are: 1) vertigo, nausea, vomiting and nystagmus (vestibular nerve damage); 2) paralysis of the soft palate and pharyngeal muscles on the side of the lesion, manifested by dysphagia, dysarthria, ipsilateral soft palate hypoplasia and loss of pharyngeal reflex (suspected nucleus and linguopharyngeal and vagus nerve damage); 3) ataxia on the side of the lesion (rope damage); 4) Horner syndrome (sympathetic nerve damage); 5) crossed hemianesthesia, i.e., ipsilateral facial pain and temperature sensation disorders. In other words, ipsilateral lateral pain and warmth loss (trigeminal spinal tract and spinal tract nucleus damage), contralateral lateral pain and warmth loss (spinal thalamus lateral tract damage). Although the clinical manifestations of posterior inferior cerebellar artery syndrome are diverse, all changes are the same, and as long as the basic symptoms of this syndrome are captured, the diagnosis is not difficult. According to Prof. Wang Xinde, the diagnosis of dorsolateral medullary syndrome must have the following two conditions: (1) it suggests that the lesion is in the medulla oblongata, i.e., one of the two must be dysarthria and dysphagia; (2) it suggests that the damage is in the dorsolateral medulla, i.e., one of the three must be pain and temperature disorder, limb ataxia and Horner’s sign. The treatment varies depending on the cause.