Psoriasis is a chronic disease that affects the body’s largest organ – the skin. However, half of the population with body psoriasis eventually gets nail psoriasis as well. Today, your nail supply specialist Maryton will tell you what is nail psoriasis. Nails are actually part of the skin. The nails grow from the matrix which is the root of the nail which is located just under the cuticle. Psoriasis affects the skin and leads to nail psoriasis by causing a change in the physical appearance of the nails. It can also cause mild pain or make nails tender or sore. About 10 to …