Hello to anybody who reads this post and thanks Just wondering if anyone could help... we’ve just got back from picking up our two Maltese terriers Rocky (6 yrs old) and Rex (12 yrs) from a groom. Our groomer mentioned she was concerned about Rex’s claws, two of his nails have turned to a brittle dark brown that almost looks like wood (sorry hard to explain, please see photo). She said she had seen this before linked to cancer on other pet groups/forums and said to get him checked asap. She also said this nail had grown a lot faster than the rest and said it was almost ‘spongy’ when she tried to cut it. Just wondering if anyone has seen this before with their dogs maybe it’s an infection/ fungal nail? I have had a good search online but can’t find anything like it. Any advice is much appreciated.