Fungus under fake nails: what to know

Artificial nails may separate from the natural nail after impact, repeated water exposure, or product damage. The resulting space can collect moisture and debris. A fungal nail infection is possible, but bacteria, irritation from adhesives, and bruising can look alike. The natural nail may become rough, brittle, thick, or detached as the problem continues.

Pause manicures and do not place another artificial nail over the affected area. Ask a qualified nail professional to remove the product without force, then keep the nail short, dry, and free from polish until it has been assessed. A clinician may inspect the nail and send a clipping for testing. Confirmed fungus may be treated with a topical medicine or an oral medicine; laser treatment and, in selected cases, nail surgery are additional discussions. Treat athlete's foot if present and avoid sharing tools.

Get prompt care if pain, swelling, warmth, pus, or redness develops around the nail, or if the change spreads to nearby skin. A dark streak, bleeding, or a nail that remains altered after the covering is removed also deserves medical assessment. Seek earlier advice if you have diabetes, poor circulation, or reduced immune function.

Ask what caused the nail separation, whether testing is needed, which treatment is suitable for the affected part of the nail, and when a manicure or artificial covering can be considered again.