Hello and thank you for your question. Contraindications for ThermiVa include pregnancy, infection, pelvic organ prolapse and the use of defibrillator devices. Blood thinners are not a contraindication for ThermiVa and will not prevent you from having the treatment. However, you should be sure your board-certified plastic surgeon is informed of your full medical history in the event that you have future procedures with them that may have blood thinners as a contraindication. I hope this answers your question. Schedule an in-person consultation with a board-certified plastic surgeon in your area for more information and a full consultation. Good luck! - Carl N. Williams, Jr., MD