This morning, I was cutting my guinea pigs nails and I discovered that the bit of nail on the back foot has gone black and strange and I never saw this before. Needless to say, I am quite worried about this. Do you have any ideas? What might cause this? How do I stop it from getting worse?

See this picture:

enter image description here

  • it looks like old blood so you need to take it to your vet to get it cleaned and treated. Mar 23, 2019 at 6:04

1 Answer 1


[NOT A VET] This looks like the nail has been torn off and the tissue underneath is undergoing necrosis. I suggest seeing a vet, it looks a bit swollen so it is probably infected.

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