anyone ever have a mole on their foot biopsied?

I see a foot doctor once in a while cause of fungus issues, the last time I went I said something like look at the moles only cause I've never noticed them before being there, kind of like out of conversation, he looked at them and said one was irregular, so I had to go see a dermatologist yesterday and they did a biopsy on them, just wondered what happens if it is cancer, will they take my foot off?