DANDELION1O1 writes: "I have a 2 year old German Shepherd female in that I adopted from the Humane Society. She is in good health; has no problem walking or running, and there is no redness, swelling or drainage from her feet. However, I recently noticed ALL her toenails are hollow... the entire length of the underside of the nails, and they are very brittle and dry. It is as if the quick of the nails is "missing". What can you tell me about this?"
Torn Toenail Q & A