White Toenails: 5 Causes (Not Always Fungus) & What To Do

Reviewed by Iryna Mozghovenko, Advanced Nail Technologist (MediNail) · Updated November 2026

Most common cause

A small injury to the nail — a bump, tight shoes or a rough pedicure

How long it lasts

White spots grow out with the nail: 12–18 months for toenails

Sign of fungus

Chalky white patches on the surface that you may be able to scrape off

See a doctor if

The nail is lifting, all your nails are white, or you also feel unwell

30-Second Check

• Small white spots or streaks on one or two nails, maybe after a bump or tight shoes — most likely a small injury. See cause 1.
• Chalky white patches on the surface that you can partly scrape off — it may be nail fungus. See cause 2.
• The nail looks white where it has lifted away from the skin — this is nail lifting. See cause 3.
• White spots appeared after polish, gel, fake nails or remover — it may be a reaction to nail products. See cause 4.
• All your nails turned white, or you also feel unwell — see a doctor. See cause 5.

The 5 Causes of White Toenails

1. A small injury to the nail. According to Cleveland Clinic, injury to the nail is the most common cause of white spots on nails. Bumping your toe, shoes that are too tight, or a rough pedicure can do it. The spots are usually harmless. They don’t wash or scrape off — they slowly grow out with the nail, which takes 12 to 18 months for a toenail.
2. Nail fungus. Fungus usually turns nails yellow, brown or white. The American Academy of Dermatology notes that with white nail fungus, the white color is on the surface, so you may be able to scrape some of it off. The color often starts at the tip, and over time the nail can get thick, brittle or crumbly. More in our yellow toenails guide.
3. Nail lifting (onycholysis). When the nail separates from the skin under it, the lifted part looks white. Causes include an injury, shoes that are too small, fungus, nail psoriasis, harsh nail products and some medicines. It usually affects one nail. The AAD advises having a dermatologist check any nail that is lifting.
4. Nail polish, gel and removers. Cleveland Clinic lists nail polish, nail hardener, polish remover and fake nails among the things that can cause white spots on nails, and chemicals in these products can also make a nail lift. Taking a break from the product usually helps.
5. A health condition (rare). When all or most nails turn white, it can be linked to conditions such as liver disease, kidney disease, heart failure or diabetes. Some medicines, such as chemotherapy, can also cause white nails. This is rare, but it needs a doctor, especially if you also feel tired, weak or short of breath.

Example photos for illustration, not our clients.

How to Tell Which One Is Yours

What To Do at Home

• Keep nails short. Trim them straight across, especially a nail that is lifting.
• Wear shoes that fit. Shoes that are too small or too tight can injure the nail.
• Be gentle under the nail. Don’t dig under the nail with sharp tools — you can break the skin and let germs in.
• Take a break from polish, gel and fake nails if the white spots started after using them.
• Don’t count on vitamins alone. Cleveland Clinic notes that doctors are not sure whether a lack of calcium, zinc or other nutrients causes white spots.

When to See a Doctor

• the nail is lifting away from the skin, especially if you don’t remember any injury;
• all or most of your nails have turned white;
• white nails come with other symptoms, such as tiredness, weakness or shortness of breath;
• the skin around the nail is red, swollen or painful;
• the nail doesn’t get better after treatment;
• you have diabetes or poor blood flow in your feet.

What We Can Do in the Studio

We are a cosmetic foot-care studio. We don’t diagnose nails. But we can help white, damaged nails look and feel better while they grow out:

• Trim and thin damaged nails. We gently shorten a lifted nail and thin a thick one, so it stops catching on socks. This is part of our Medical Pedicure.
• Fungal nails. Painless cosmetic thinning of thick, fungus-damaged nails helps your treatment reach the nail bed. See our toenail fungus solution.
• A break from gel. A waterless Wellness Pedicure keeps nails neat without gel or harsh removers.

If we see anything that needs a doctor, we will tell you directly before any cosmetic work.

Frequently Asked Questions

Sources

• Cleveland Clinic: White spots on nails (leukonychia)
• Cleveland Clinic: Onycholysis (nail separation)
• American Academy of Dermatology (AAD): Nail fungus: signs and symptoms
• American Academy of Dermatology (AAD): 12 nail changes a dermatologist should examine
• DermNet: White nail (leukonychia): an overview

Related

MedPedicure Center provides cosmetic foot care and does not diagnose, treat or cure medical conditions. This page is general information, not medical advice. For a lifting nail, nails that turn white all at once, pain, infection, or any condition that may need medical care, please consult a licensed podiatrist, dermatologist or physician.