Does anyone know if there is any correlation between ET and varicose veins? I was diagnosed with ET in July, started Hydrea at the end of October, taking 500 mg a day. Just had my blood checked again yesterday and my numbers did not go down (690) so they have upped my Hydrea to 1000 mg a day. My question is, is there any connection between ET and varicose veins? I have always had spider veins, but have just developed painful bulging varicose veins. Is it just a coincidence?