[Bayoucorgi]

Liam was limping occasionally and sometimes seemed pretty profoundly lame. I was cutting his nails and noticed the nail bed where the nail comes out of his toe was dark colored. I scrubbed it with hydrogen peroxide and there was some bubbling so I suspected infection. The vet gave him a course of antibiotics and the nail started growing in pink and he stopped limping.

Also check carefully in between the paw pads for seeds or thorns. Sometimes it isn't something skeletal or soft tissue, just something sore.