Whether carotid plaque 17.3×2.0mm is serious or not depends on whether the carotid plaque is stable, combined with calcification, or causing stenosis, etc. It can be treated with general treatment, medication, surgery and other measures. It is necessary to choose whether to take lipid-lowering drugs according to the specific situation. 1. General treatment: attention should be paid to maintaining good living habits, and for people with hypertension, diabetes, hyperlipidemia, etc., attention should be paid to diet, exercise, and control of blood pressure and blood sugar. 2. Medication: medication can be administered, such as Rosuvastatin, which is a very common lipid-lowering drug that can stabilize plaque. Rosuvastatin will cause some damage to the liver, so you should go to the hospital regularly for appropriate examination. 3. Surgical treatment: If the plaque is already unstable and causes more than 70% of lumen narrowing, surgical intervention is needed, either endothelial stripping or stenting. It is recommended that patients should not judge or diagnose on their own based on one result, but should consult the doctor in time, who will analyze and diagnose clearly according to the specific situation.