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Losing a toenail can be an alarming experience. Whether it’s the result of an injury, infection, or underlying medical condition, seeing your toenail lift, loosen, or fall off is never pleasant — and it often leaves people wondering what caused it and how to treat it safely.

In this guide, we’ll explain why toenails detach, what symptoms to watch for, and what you can do to support healthy healing and nail regrowth.

Common Reasons Why a Toenail May Fall Off

A toenail may separate from the nail bed — a condition known as onycholysis — for a variety of reasons. Here are the most common causes:

1. Injury or Trauma

Dropping something heavy on your toe, stubbing it hard, or repeated irritation (like from running or tight shoes) can cause blood to pool beneath the nail (a subungual hematoma), eventually leading to nail detachment.

2. Fungal Infections

Toenail fungus (onychomycosis) can cause the nail to become thick, discolored, brittle, and deformed. As the infection worsens, the nail may begin to lift and separate from the nail bed.

3. Psoriasis and Other Skin Conditions

Certain autoimmune or dermatological conditions like psoriasis can weaken the nails and increase the risk of detachment.

4. Repeated Moisture or Chemical Exposure

Long-term exposure to moisture or harsh chemicals (e.g., from nail polish remover, cleaning agents, or pool water) can damage the toenail structure, making it easier for the nail to lift and fall off.

5. Ill-Fitting Footwear

Tight shoes, especially during athletic activities, can create constant friction and pressure on the nail, leading to loosening over time — common among runners and hikers.

What to Do If Your Toenail Is Coming Off

If your toenail is partially detached or has already fallen off, follow these steps to avoid infection and support healthy healing:

1. Do Not Force the Nail Off

If part of the nail is still attached, avoid pulling or cutting it yourself. Let it fall off naturally, or have it evaluated by a podiatrist to determine the safest way to remove it.

2. Clean and Protect the Area

Gently clean the exposed nail bed with soap and water, then apply an antibiotic ointment and a clean bandage to protect it. Avoid soaking the foot unless recommended by your doctor.

3. Watch for Signs of Infection

Redness, swelling, pus, or increased pain could indicate infection. If you notice these symptoms, seek medical attention promptly.

4. Limit Pressure and Friction

Wear open-toed shoes or protective footwear to minimize additional trauma. Avoid tight shoes and high-impact activities until the area heals.

Will the Toenail Grow Back?

In most cases, yes — but it takes time. Toenails grow much slower than fingernails. You can expect:

• 6 months to a year for full regrowth, depending on your age and overall health
• Nails may grow back slightly different in color, shape, or texture
• If the nail matrix (root) was damaged, the new nail may grow in abnormally — or not at all

When to See a Podiatrist

Not all toenail issues require urgent care, but it’s a good idea to see a specialist if:

• You have diabetes or poor circulation
• The nail bed is very painful or bleeding
• You suspect infection or see red streaks spreading
• The nail repeatedly detaches or grows back abnormally
• You have underlying skin or immune conditions

A podiatrist can evaluate the cause, remove damaged nail tissue if needed, and recommend antifungals, protective dressings, or advanced wound care treatments.

Preventing Future Nail Problems

To keep your toenails healthy and avoid future nail loss:

• Wear well-fitting, breathable shoes
• Trim toenails straight across and avoid cutting them too short
• Protect your feet during sports or heavy activity
• Treat fungal infections promptly
• Avoid prolonged moisture and harsh chemicals on the nails

Final Thoughts

While a toenail falling off can be unsettling, most cases heal well with proper care. Understanding what’s behind it and how to treat it can prevent complications and support healthy regrowth.

If you’re experiencing persistent toenail problems or are concerned about nail changes, our expert foot and ankle team is here to help.