Will I need to take blood thinners after a THP? A Will I need to take blood thinners after a THP? If you did not take blood thinners before your surgery, you will not need heavy blood thinners afterwards. We give Asaflow or Cardoaspirine. If you are taking blood thinners, we will agree on a specific treatment plan during your consultation. + There are no comments Add yours Cancel replyCommentNameEmailUrl Save my name, email, and website in this browser for the next time I comment.