How long it takes for blood lipids to return to normal after quitting smoking varies from person to person, and smoking is not the only factor that causes elevated blood lipids, so blood lipids do not necessarily return to normal after quitting smoking, and comprehensive control is usually needed to get better lipid-lowering results. Smoking is an important factor that causes elevated blood lipids, so quitting smoking has a certain effect on controlling blood lipids. However, there is no clear data on how long it takes to normalize blood lipids after quitting smoking. At the same time, it should be noted that in addition to smoking, excessive greasy and high salt diet, lack of physical exercise, late night, drinking and other bad habits, as well as hypertension, diabetes and other metabolic disorders can lead to dyslipidemia. Therefore, in order to promote the normalization of blood lipids, it is also necessary to take a multifaceted comprehensive lipid-lowering measures. Including lifestyle intervention, quit smoking and drinking, maintain appropriate exercise, eat a light diet low in salt, etc.; at the same time, we also need to treat other diseases; if necessary, we can choose lipid-lowering drugs under the guidance of a doctor to strengthen lipid-lowering. It is recommended to consult a professional doctor in time for standardized diagnosis and treatment.