Hi @kdh1, your question was the topic of a recent article on the Mayo Clinic News Network. I think you'll find this very informative.
- Mayo Clinic Q and A: What are skin tags? https://newsnetwork.mayoclinic.org/discussion/mayo-clinic-q-and-a-what-are-skin-tags/

Sometimes skin tags can grow back and repeat treatments may be necessary. I would also question your doctor if what you have are indeed skin tags or another skin disorder that can mimic the appearance of a skin tag. These include benign conditions such as moles, warts and seborrheic keratoses, as well as malignant skin cancers, including melanomas.