Yup, I had several skin tags with my perianal disease, along with other damage to the area. I had my rectum and anus removed recently, and as a bonus, it got rid of all those problems down there (including the skin tags).
If you won't be having rectal surgery, you may want to ask your doc if they can remove the skin tags - it should relatively easy depending on how they do it. I would imagine they would cut and cauterize.