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 ...

Vitamin deficiencies or fungal infections can ... American Osteopathic College of Dermatology. Brittle splitting nails. Chessa MA, Iorizzo M, Richert B, et al. Pathogenesis, clinical signs and ...

Experts say these signs – which can be extremely disturbing - are your body’s way of communicating potential vitamin and ...