I have a 18 month old staffie who is very particular about have her nails done (aka unless you distract her with a bone she won’t let you anywhere near her) because of this I try not to put her through it too often so only check her nails and cut them if they need it about once a week. I have just gone to check her nails and saw this? I’ve had dogs all my life but never seen this? There is no blood, swelling, redness and I can touch it and she’s fine. Any ideas?