A split nail (onychoschizia) is a vertical or horizontal crack through the fingernail. The nail may also feel soft, thin, or brittle. Injury, harsh chemicals, psoriasis, nail fungus, or vitamin ...

It then penetrates the toenail, resulting in yellow, white, or even brown discoloration that can become brittle and split, which might cause partial or total loss of the nail. Regularly wearing bright ...

All dogs need their nails trimmed regularly. "Long nails tend to break, and then you can get a split toenail," says Grace A. Mengel, DVM, assistant professor of clinical primary care medicine at ...