 [ Symptoms ] what causes blocked arteries my mom has had stints put in but they still keep getting blocked i understand that smoking plays a role but smoking can not be all of it the doctors here believe that is all that is causing the heart attack and blocked arteries and dont bother to check for anything else [ Disease ] hi are you taking any contraceptive drugs if not then my opinion is that you may have a thoracic inlet syndrome especially if you have large breast or round shoulder good luck