Ultrasound of the neck indicates plaque formation, which is clinically common in two main types of diseases: 1, mainly seen in carotid atherosclerosis, and accompanied by plaque formation, usually secondary to hypertension, resulting in damage to the intima of the blood vessels, which causes lipid deposition in the destruction of the intima of the arteries to form plaques, the main clinical manifestations are headache, dizziness and other uncomfortable symptoms, the treatment is mainly to control blood pressure, soften the blood vessels, to avoid plaque detachment The main treatment is to control blood pressure and soften blood vessels to avoid plaque detachment leading to cerebral infarction; 2, mainly seen in the calcified foci of the thyroid gland, because the calcified foci of the thyroid gland is an important imaging basis for its malignant transformation, usually need to further conduct thyroid ultrasound classification, if necessary, can consider puncture biopsy or even surgery.