Can you tell me about anesthesia for removing pins from under the skin?

It depends.: The type of anesthesia required will depend on how much surgical work is needed to get the pins out. Thus the anesthesia requirement could range from just sedation with local/filed block by the surgeon to general anesthesia . It all depends again on what the surgical need is and I am sure your anesthesiologist in concert with your surgeon will guide you accordingly. Be well.