Will Your Toenail Grow Back?

Yes, a toenail will grow back after it falls off or is removed, as long as the cells that produce the nail are still intact. That tissue is called the nail matrix, and it sits partly under the skin at the base of the nail. If the matrix is healthy, a new nail will form. If the matrix has been permanently damaged by injury, infection, or surgery, the nail may grow back thin, split, or not at all.

Growth is slow. A toenail typically takes 12 to 18 months to fully regrow, which is much slower than a fingernail. The timeline depends on which toe it is, your age, your circulation, and whether anything is repeatedly irritating the growing nail.

How Does a Toenail Grow Back After It Falls Off?

The new nail grows out of the nail matrix, the tissue you can partly see as the pale half-moon at the base of the nail. Cells there divide and harden into keratin, the same protein that makes up hair and the outer layer of skin. As new cells form, they push older ones forward. What you see as the nail plate is really a moving record of what the matrix produced weeks earlier.

This is why damage to the matrix matters more than damage to the visible nail. If the nail plate is torn off but the matrix is untouched, a new plate grows normally. If the matrix is scarred — by a crush injury, a deep infection, or a surgical removal — the new nail can come out ridged, thickened, or misshapen.

Growth rate matters too. Toenails grow roughly 1 millimeter per month, though this varies. The big toenail is the slowest. The smaller toes can be a little faster. Fingernails grow about three to four times faster, which is why a lost fingernail is a much shorter inconvenience.

How Long Does It Take for a Toenail to Grow Back?

Full regrowth of a big toenail usually takes 12 to 18 months. Smaller toenails are often faster, but they are also smaller, so the total time can be similar. A fingernail, by comparison, typically regrows in about 4 to 6 months.

Several things slow the process down:

• Age — circulation to the feet declines with age, and growth slows with it
• Poor blood flow to the feet, including from peripheral artery disease or diabetes
• Repeated pressure from tight shoes
• Ongoing fungal infection in the new nail
• Certain medications and some medical conditions

You will usually see the first visible new growth within a few weeks to a couple of months. That early growth often looks uneven or thin. It thickens as it advances.

Will a Toenail Grow Back After Being Permanently Removed?

It depends entirely on whether the nail matrix was destroyed. When a doctor removes a toenail permanently — a procedure called matricectomy — the goal is to damage or remove the matrix so the nail does not return. This is sometimes done for a chronically ingrown toenail that keeps coming back.

If the matrix is only partly removed, a narrower or partial nail may grow back. If it is fully destroyed, no nail grows. This is a deliberate outcome, not a complication.

If a nail was removed because of injury rather than a planned procedure, regrowth depends on how much of the matrix survived. A clean avulsion with an intact matrix usually regrows well. A crush injury that scars the matrix often does not.

What Can Stop a Toenail From Growing Back Properly?

Several problems can interrupt or distort regrowth. The most common is infection. A fungal nail infection can settle into the new nail as it forms, leaving it thick, yellow, or crumbling. Treating the infection early matters, because fungus in a growing nail is harder to clear than fungus in an established one.

Other causes of poor regrowth include:

• Scarring of the nail matrix from injury or surgery
• Poor circulation, which slows delivery of nutrients to the growing cells
• Repeated trauma from shoes that press on the toe
• Conditions that affect nail growth, such as psoriasis or thyroid disease
• Nutritional deficiencies, though these are a less common cause than most people assume

One point worth separating out: a new nail that grows back slowly is not automatically a sign of a nutrient deficiency. Slow toenail growth is normal in many healthy adults, especially older ones. A doctor can help sort out whether a slow-growing or abnormal nail points to something more.

What Should You Do While a Toenail Grows Back?

Protect the toe and keep the area clean. The skin under a missing nail is sensitive and easy to irritate. A few practical steps help:

• Keep the toe covered with a bandage or a light dressing if the nail bed is exposed
• Wear shoes with a wide toe box so nothing presses on the growing nail
• Keep the foot dry and clean to lower the risk of infection
• Trim the new nail straight across once it is long enough, and not too short
• See a doctor if you notice spreading redness, swelling, pus, or worsening pain

Do not try to force the nail to grow faster with supplements or topical products. No clinical evidence confirms that any over-the-counter product speeds up nail regrowth. Time and a healthy matrix do the work.

When Should You See a Doctor About a Toenail That Won’t Grow Back?

See a doctor if a nail has not started growing back within a few months, if the new nail is severely misshapen or painful, or if there are signs of infection. People with diabetes or poor circulation should seek care sooner, because foot problems in these groups can escalate quickly.

Also see a doctor if a nail changes color, thickens, or lifts from the nail bed without an obvious cause. Some of these changes are minor, but a few can signal a condition that needs attention. It is reasonable to have anything unusual on a toenail checked rather than watched for months.

If a nail was removed surgically, ask your doctor whether the matrix was preserved. That single detail tells you whether full regrowth is expected or whether a partial or absent nail is the intended result.

Can You Speed Up Toenail Regrowth?

There is no proven way to make a toenail grow back faster. Growth rate is largely set by blood flow, age, and genetics. What you can do is remove the things that slow it down or distort it — pressure from shoes, ongoing infection, and repeated injury.

Some people ask about biotin or other supplements for nail growth. The evidence for biotin helping nails in people who are not deficient is weak. No large human trials have confirmed a benefit for nail regrowth. If you are considering a supplement, talk with a doctor first, especially if you take other medications.

The most useful thing you can do is be patient and protect the toe. Toenails are slow, but a healthy matrix almost always produces a new nail eventually.