I would suggest you cut your pig's nails 1-2 times per month or as often as needed. I hold Shadow and my mom does the trimming with some special nail clippers for animals as I am not that confident in doing it myself pluis it takes 2 to trim a piglet's nails , 1 to hold, 1 to trim. Just be careful you don;t clip the quick. it would be painful for them but I don;t think it wouild bleed too much, if this happens, (it has not happened with me) get some paper towels or such and hold the piggy;s feet until it stops bleeding and the blood should form a clot. then I would put some special lotion or cream on their feet to help it heal. btw I was looking at my pig;s feet and noticed one of the claws got ripped off below the quick. I looked in his cage but could find nothing that he would have gotten his claws caught on, and it bled a tiny bit but formed a blackish clot I had been putting some cream on it as often as I can to help with it it had looked a bit swollen compared to his other toes. But he is perfectly alright as I was concerned about this, but my only guess what the cage bars since that would have been the only possibility that I can fathom.