Routine neck ultrasound can detect the following problems: 1. Neck ultrasound can detect whether there is atherosclerosis in the blood vessels of the neck, and if there is atherosclerosis, then further diagnose whether there is atheromatous plaque, and then determine the plaque shape, size, echogenicity, and whether the plaque is causing stenosis in the blood vessels; if it causes stenosis, according to the degree of stenosis, whether surgery and stenting should be done; 2, Ultrasound examination of the neck can detect the presence of occupying lesions in the thyroid gland, such as cysts, nodules, and thyroid cancer; it can also determine the presence of inflammatory changes, such as Hashimoto’s thyroiditis and subacute thyroiditis; 3.