Medically reviewed by Dr. Tom Biernacki, DPM
Board-certified podiatric surgeon | Balance Foot & Ankle, Howell & Bloomfield Hills, MI
Last reviewed: May 2026
Quick answer: Toenail Fell Off is a common nail condition with multiple causes including trauma, fungal infection, biomechanical pressure, and underlying medical conditions. Treatment depends on the cause: trauma resolves as the nail grows out (6-12 months), fungus needs antifungal therapy, and biomechanical issues need shoe and orthotic correction. Call (810) 206-1402.
The most important clinical decision with Toenail Fell Off isn’t which treatment to start with — it’s identifying the correct subtype. That changes everything. Call (810) 206-1402.
Toenail Fell Off: Quick Answer
When a toenail falls off (onycholysis), the most common causes are: trauma (runners toe with subungual hematoma), severe fungal infection (onychomycosis), psoriasis, repeated friction, autoimmune conditions, or chemotherapy. The first 48 hours: gently clean with mild soap and water, apply a thin layer of antibiotic ointment, cover with a clean bandage, and wear loose footwear. The new nail will grow back from the matrix at approximately 1mm per month — full toenail regrowth takes 12-18 months. The nail may grow back thicker, distorted, or with permanent ridges if the matrix was damaged. Diabetic patients should ALWAYS see a podiatrist for any nail loss due to infection risk.
First 48 Hours: What to Do Right Away
Step 1: Wash hands thoroughly. Gently clean the exposed nail bed with mild soap and warm water. Don’t scrub — pat carefully to remove debris.
Step 2: Pat dry. Apply a thin layer of bacitracin or mupirocin (antibiotic ointment) to the entire nail bed.
Step 3: Cover with a sterile non-adherent dressing (Telfa pad) and a clean bandage. Change dressing daily and after showers.
Step 4: If part of the nail is still partially attached, do NOT pull it off forcibly. Either let it detach naturally or have a podiatrist trim it cleanly. Pulling can damage the matrix and cause permanent nail deformity.
Step 5: Wear loose-fitting open-toed shoes or sandals during the initial healing period. Avoid running or sports for 1-2 weeks.
When to call a doctor: Significant bleeding that doesn’t stop with pressure; signs of infection (spreading redness, fever, pus); diabetic patient; any concerns.
Why Did My Toenail Fall Off? (5 Most Common Causes)
1. Trauma / runners toe: Subungual hematoma (bleeding under the nail) lifts the nail off the bed. Common in runners, hikers, and after dropping objects on the toe. See our runners toe guide.
2. Fungal infection: Severe onychomycosis (especially total dystrophic type) can completely destroy the nail attachment. See our types of toenail fungus guide.
3. Psoriasis: Psoriatic nail disease causes pitting, crumbling, and onycholysis. Often associated with skin psoriasis or psoriatic arthritis.
4. Repeated friction: Shoes that are too tight or too loose cause repetitive micro-trauma that eventually detaches the nail.
5. Chemotherapy: Many chemotherapy agents (especially taxanes) cause nail changes including detachment. Usually grows back after treatment ends.
How Long Does a Toenail Take to Grow Back?
Toenails grow at approximately 1mm per month — much slower than fingernails (3mm per month). Full toenail replacement takes 12-18 months from the matrix to the tip.
Timeline: Month 1-2: New nail begins growing from the matrix at the cuticle area. Month 3-6: New nail visible covering proximal 1/3 of the nail bed. Month 6-12: New nail covers most of the nail bed. Month 12-18: Complete nail replacement.
Factors that slow regrowth: Age (older patients = slower growth), poor circulation (PAD, diabetes), nutritional deficiencies (especially biotin, iron, B12, protein), thyroid disease, smoking, severe matrix damage from the original injury.
Will My New Nail Grow Back Normal?
Most nails grow back normally if the nail matrix (the growth zone at the cuticle) was not damaged. Common abnormalities if matrix was injured:
Thicker nail: Most common abnormality. The matrix overproduces keratin. Usually permanent but cosmetic.
Ridged nail: Vertical or horizontal ridges from disrupted matrix function.
Distorted shape: If significant matrix scarring occurred, the nail may grow in an abnormal shape (curved, split, or partial).
Permanent loss: Severe matrix injury can result in no nail growth at all (anonychia) or only partial growth.
Discoloration: Yellow, brown, or white changes in the new nail can persist.
When You Need a Podiatrist
Same-week appointment if: Significant pain, signs of infection (redness, pus, fever), partial nail still attached and causing pain, no new nail growth visible at cuticle after 6 months, you have diabetes or PAD, recurrent nail loss in the same toe.
What we do: Properly trim any partially attached nail; treat any infection (oral or topical antibiotics); evaluate for underlying cause (fungus, psoriasis); biopsy if pigmentation or unusual appearance; matrixectomy if recurrent ingrown nails are a problem; nail brace systems for chronic nail deformities.
Preventing Future Toenail Loss
Proper shoe fit: Thumb-width space between longest toe and front of shoe. Replace running shoes every 300-500 miles. Use lace-lock technique to prevent foot sliding forward in downhill walking.
Toenail trimming: Trim straight across (not curved into corners). Don’t cut too short. Use proper toenail clippers, not fingernail clippers.
Treat fungus early: Don’t let toenail fungus progress to total dystrophic onychomycosis where the nail can detach. See effective treatment options.
Foot care for systemic conditions: Diabetes, PAD, psoriasis, and chemotherapy patients should have regular podiatrist care to prevent and manage nail problems.
When Shoes Aren’t Enough — Dr. Tom’s Top 9 Orthotics
About 30% of patients I see for foot pain need MORE than a great shoe — they need a structured insole. Below: my complete 2026 orthotic ranking with pros, cons, and the specific patient I’d give each one to.
In-Office Treatment at Balance Foot & Ankle
If home treatment isn’t providing relief for your foot and ankle conditions, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.
Frequently Asked Questions About Toenail Fell Off
What should I do if my toenail falls off?
Wash gently, apply antibiotic ointment, cover with clean bandage, wear loose footwear. The new nail grows back from the matrix over 12-18 months. See a doctor for severe pain, infection signs, or diabetes.
How long does it take for a toenail to grow back?
Approximately 1mm per month. Full toenail regrowth takes 12-18 months from the matrix to the tip.
Will my toenail grow back if it falls off?
Yes, in most cases. The nail grows back from the matrix at the cuticle. If the matrix was severely damaged, the new nail may be thicker, ridged, or distorted.
Should I cut off a partially detached toenail?
No — pulling or cutting can damage the matrix. Either let it detach naturally as it grows out, or have a podiatrist trim it cleanly.
Can a toenail fall off without trauma?
Yes — fungal infection, psoriasis, autoimmune conditions, chemotherapy, and severe nutritional deficiencies can cause spontaneous nail loss.
Should I be worried if my toenail fell off?
See a podiatrist if: significant pain, signs of infection, no new growth after 6 months, diabetes/PAD, or recurrent loss in same toe.
Why does my toenail keep falling off?
Recurrent nail loss usually indicates an underlying cause: chronic shoe fit issues, untreated fungal infection, psoriasis, or systemic disease. Podiatrist evaluation can identify the cause.
Related Resources from Balance Foot & Ankle
- Runners Toe (Black Toenail)
- 5 Types of Toenail Fungus
- Black Spot on Toenail
- Horizontal Ridges on Toenails
- Ingrown Toenail Warm Soak
- Diabetic Foot Care
Dr. Tom’s Nail Loss Recovery Protocol
- FLAT SOCKS No-Sock Insoles — Exposed nail bed after toenail loss: FLAT SOCKS moisture-wicking inserts create a smooth, friction-free barrier between the vulnerable nail bed and shoe upper — reducing the trauma that delays regrowth and causes pain during the 3-6 month recovery period.
- Doctor Hoy’s Natural Pain Relief Gel — Periungual pain and nail bed soreness after nail loss: arnica gel applied to the skin surrounding the exposed nail bed reduces inflammatory pain during the regrowth phase.
- DASS Medical Compression Socks — Toenail loss with lower extremity swelling or venous insufficiency: graduated compression reduces the venous stasis that impairs nail bed perfusion and slows regrowth — particularly important in diabetic and elderly patients.
Toenail fell off with signs of infection, not growing back after 6 months, or from systemic disease? Nail matrix evaluation and treatment at Balance Foot & Ankle. Balance Foot & Ankle → (810) 206-1402
Frequently Asked Questions
How long does it take a toenail to grow back?
6-12 months for a full big toenail. Smaller toenails 4-6 months. Speed varies with age, circulation, and nutrition.
Will this affect other nails?
Trauma affects only the injured nail. Fungal infection can spread without treatment. Systemic causes affect multiple nails simultaneously.
Should I cover the nail or leave it open?
Cover with a breathable bandage during work or activity. Leave open at night for healing. Keep dry and clean.
APMA: Toenail Loss — Causes and Recovery
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Dr. Tom Biernacki, DPM is a board-certified foot & ankle surgeon (ABFAS & ABPM) at Balance Foot & Ankle Specialists in Southeast Michigan. With over a decade of clinical experience, he specializes in heel pain, bunions, diabetic foot care, sports injuries, and minimally invasive surgery. Dr. Biernacki is a member of the APMA and ACFAS, and his patient education content on MichiganFootDoctors.com and YouTube has made him one of the most-followed foot & ankle educators on YouTube.