If you’re having a general anaesthetic or sedation, it'll be administered through a cannula, a small plastic tube placed into a vein in your arm or hand. You may also have an intravenous drip.
Once the anaesthetic has taken effect, the surgeon will start the procedure.
If the tumour hasn’t spread, it'll be removed (along with the surrounding skin) and the wound will be closed with sutures.
If the tumour is great in size, a large portion of skin will be excised to ensure all the cancer cells have been removed. This may require skin grafting – where a layer of skin is taken from another area of your body and carefully placed over the wound.
In the vast majority of cases you’ll be aware of the need for skin grafting beforehand. A dressing will be placed over the wound site and left on for several days. Another dressing will be placed over the site where the graft was taken.