Nail detached from the nail bed due to fungus

Fungal infection can make a nail thick, brittle, crumbly, or yellow-white and allow debris to collect beneath it. The lifted portion no longer sits closely on the nail bed and may catch on socks or shoes. Discolouration has other causes, so a clinician may inspect the nail or test a clipping. Fungal infection can also affect skin between the toes, such as [Athlete's Foot](/conditions/athletes-foot/). See [Nail Fungus](/conditions/nail-fungus/) for the broader condition.

Keep the nail clean and dry, trim only loose edges that do not bleed, and use footwear with enough room. Do not pull off the attached portion, share nail tools, or cover the nail with polish while it is being assessed. Depending on the examination and test, a clinician may discuss [Topical Antifungal Treatment](/treatments/medical-dermatology/topical-antifungal-therapy/), [Oral Antifungal Treatment](/treatments/medical-dermatology/oral-antifungal-therapy/), or another option. Laser treatment is not suitable for every case; ask about [Laser Treatment For Nail Fungus](/treatments/laser-and-energy/laser-nail-fungus-treatment/).

Arrange assessment if separation is spreading, several nails are involved, or the nail is painful or repeatedly catching. Seek prompt care for pus, increasing redness, warmth, swelling, or a wound. People with diabetes, poor circulation, or reduced immunity should obtain advice early. A badly detached nail after injury may need a different approach, including selected [Nail Surgery](/treatments/surgical-dermatology/nail-surgery/).

Ask whether a nail sample is needed, which treatment fits the number and location of affected nails, and how medicines may interact with your health history. Ask how to manage footwear and prevent spread to household members.