Gao xx, female, 75 years old, recurrent dizziness with nausea and vomiting for more than 1 year, hypertension for 8 years, diabetes mellitus for 2 years, has been receiving regular treatment, had cervical spine film and cranial MRI examination in many hospitals for dizziness, cranial MRI showed “multiple ischemic foci”, cervical spine film showed “degenerative changes of cervical spine”. The cervical spine film showed “degenerative changes in the cervical spine”, and the treatment of “cervical spondylosis and cerebral insufficiency” was proposed for a long time, but no significant improvement was seen. A whole-brain angiogram was performed and found that there was no abnormality in the vertebrobasilar artery bilaterally, the right internal carotid artery was occluded distally, and the left internal carotid artery was severely stenosed; the vertebrobasilar artery was compensating for the carotid artery blood supply (blood theft). After stenting of the left internal carotid artery, the symptoms were completely improved. The symptoms of “dizziness” are generally thought to be caused by cervical spondylosis (insufficient blood supply to the vertebrobasilar artery), or even our counterparts; so we just do a cervical spine examination and that’s it, without doing a detailed cerebrovascular examination, which often overlooks the potential serious lesions of the cerebrovascular, leading to serious consequences. This patient has “cervical spondylosis”, but more serious cerebrovascular obstruction lesions, and the “criminal” blood vessels are not the direct cause of the symptoms, so without in-depth cerebrovascular examination, how to judge accurately? And how to determine the effective and targeted treatment plan? I think: we should pay attention to cerebrovascular imaging, and we should do detailed and in-depth cerebrovascular examination, including whole brain angiography, for any patient who is suspected of having cerebrovascular lesions.