Can blood vessels change after quitting smoking?

After smoking cessation, the blood vessels generally cannot be completely improved, but the blood vessel function can be improved to some extent.

Tobacco contains a lot of nicotine, tar, nicotine and other harmful substances. Regular smoking will cause damage to the intima of the blood vessels, accelerate thrombosis, lead to high blood viscosity, and cause arteriosclerosis. once vascular lesions occur, they cannot be reversed, so even after smoking cessation, the blood vessels cannot be completely restored to normal. However, after successful smoking cessation, it can delay the progression of vascular diseases, eliminate the main causes of vascular diseases, and improve vascular function to a certain extent. Therefore, it is necessary to quit smoking.