Hi Althea, Welcome to healthcare Magic! The varicose veins are indicative of incompetent venous valves and increase the chances of superficial thrombosis. You should have yourself check for coagulation profile and review to a local doctor. If there is a procoagulant state or it risk factors like obesity, prologed sitting type life style then you must avoid pills. Otherwise you can take small dose progestin only pills or low dose estrogen combination pills. I hope the advise would be informative and useful for you. Take Care!