Toenail Falling Off: Causes, What to Do & When to See a Podiatrist
Medically reviewed by Dr. Tom Biernacki, DPM, FACFAS Board-certified podiatric foot & ankle surgeon · Balance Foot & Ankle · Last reviewed: May 6, 2026 Quick answer: A complete toenail problems guide falling off (onychomadesis or onycholysis) is most commonly caused by a delayed-onset trauma response from running or tight shoes — even when you … Read more