What Should You Know About Nail Pitting and Onycholysis?

Nail pitting appears as small dents or depressions in the nail plate. Nail psoriasis commonly presents with pitting, but pitting can also follow local injury or occur with other inflammatory skin conditions. Onycholysis means the nail plate has lifted away from the skin underneath, often starting at the free edge and creating a white-looking gap. Trauma, repeated wet work, irritants, some infections, and inflammatory nail disease can contribute. A single nail affected after an impact may behave differently from several nails changing gradually.

Colour change, debris under the nail, tenderness, thickening, or crumbling can provide additional clues, but appearance alone cannot reliably distinguish psoriasis from a fungal infection or another problem. A clinician may inspect the nails, skin, and joints and may test nail material when infection is a possibility. Nail psoriasis can occur with or without obvious plaques elsewhere on the skin.

Keep nails short and file rough edges gently so a lifted nail does not catch. Wear gloves for prolonged contact with water, cleaning products, or chemicals, and dry your hands and feet carefully afterward. Avoid picking beneath the nail, cutting back attached nail, or covering a damaged nail with adhesive enhancements. Comfortable, well-fitting shoes can reduce repeated pressure on toenails.

Arrange a dermatology assessment if the change persists, spreads to other nails, or returns without an obvious injury. Treatment depends on the cause and may involve a topical medicine, care directed into the affected nail area, or broader treatment when nail psoriasis accompanies more extensive disease. Do not start an antifungal treatment solely from the nail’s appearance; confirmation can prevent treating the wrong condition.

Seek prompt medical advice if the skin around the nail becomes increasingly red, warm, swollen, or painful, or if pus develops. Arrange an evaluation for a dark or unusual colour change that does not grow out, bleeding without a clear injury, or a nail that is rapidly separating. Painful feet, morning joint stiffness, or swollen finger or toe joints alongside nail changes also deserve assessment because nail psoriasis may occur with psoriatic arthritis.

A clinician can advise whether you need routine dermatology care or faster review after seeing the pattern, speed of change, and any associated symptoms. Take photographs over time and note recent injuries, manicures, new products, wet work, or medicines to make that discussion more useful.

You could ask: Does the pattern fit nail psoriasis, injury, infection, or another condition? Would a nail sample or other test help? Should I protect or trim the lifted portion? Which treatment is suitable for the affected nail, and how will we monitor regrowth? Do my joint symptoms warrant a separate assessment?