Nail Fungus in People With Diabetes

Diabetes can be associated with reduced sensation or circulation in the feet. A thick, brittle, or separated nail may rub against footwear, trap moisture, or make a small wound harder to notice. Nail fungus itself does not identify how well diabetes is controlled, and a changed nail may have another cause. The aim is to confirm the diagnosis while protecting the skin around the nail.

Inspect both feet and the skin around each nail regularly, using a mirror if needed. Wash with lukewarm water, dry carefully between the toes, and wear well-fitting shoes and clean socks. Trim nails straight across without cutting the corners or digging under the nail. Do not use caustic home remedies, remove the nail yourself, or share tools. Read more about [Nail Fungus](/conditions/nail-fungus/) and arrange a clinician-led treatment plan.

Contact a healthcare professional promptly for a crack, blister, ulcer, bleeding, drainage, spreading redness, warmth, swelling, or new pain. Reduced sensation can make a serious foot problem feel minor. Fever or rapidly worsening redness needs urgent medical attention. Bring a list of medicines and mention any previous foot wound, circulation problem, or loss of sensation.

Ask whether the nail needs testing, who should trim it, which treatment fits your medicines and kidney or liver health, and how often your feet should be checked.