Nail

Common causes of nail problems include injury, infection and skin diseases such as eczema and psoriasis. Some conditions need professional treatment from a doctor or a dermatologist. People with diabetes or compromised immune systems have a higher risk of fungal nail infections.

Nails are made from a protein called keratin. This is the same protein that makes up skin and hair. Nails grow from cells that multiply within the base of the nail, then layer on top of each other and harden. This is called keratinisation.