How to Get Your Toenail to Grow Back: The Regrowth Process

A lost toenail almost always grows back, but the process is slow. Toenails grow at roughly 1.6 mm per month on average, which means a completely lost big toenail can take 12 to 18 months to fully regrow. The timeline depends on which toe is involved, how the nail was lost, whether the nail matrix (the tissue that produces the nail) survived intact, and your overall health. Understanding what is happening under that empty nail bed, and what can go wrong along the way, makes the long wait considerably less stressful.

How Fast Toenails Actually Grow

Toenails grow about half as fast as fingernails. A study of healthy young adults in the United States measured an average toenail growth rate of 1.62 mm per month, compared with 3.47 mm per month for fingernails.¹ Among toenails, the big toe grows the fastest, while the smaller toes lag behind. That difference matters because a big toenail is also the longest nail on the foot, so even with a faster relative growth rate it still takes the better part of a year to cover the full nail bed.

Growth rates slow further with age, reduced circulation, and chronic illness. If you are over 60 or have a condition that affects blood flow to the feet, expect the timeline to stretch beyond the typical range. Cold weather and seasonal factors also play a small role, with nails generally growing slightly faster in warmer months when blood circulation to the extremities increases.

What Happens After You Lose a Toenail

When a toenail falls off or is removed, the exposed nail bed can look alarming: raw, pink, sometimes bruised, and tender to the touch. But the nail bed itself is not where the new nail originates. The new nail grows from the nail matrix, a crescent-shaped region of tissue tucked just beneath the skin at the base of the toe, behind and under the cuticle. As long as that matrix is intact, it will push out a new nail plate.

The earliest sign of regrowth is usually a thin, semi-transparent ridge appearing at the base of the nail bed within the first few weeks. This new nail tends to be thinner and more flexible than the original. Over the following months it gradually thickens, hardens, and takes on a more normal appearance as it creeps forward. The nail bed underneath often looks discolored or rough during this phase, and that is normal. By the time the new nail reaches the free edge of the toe, its texture and thickness should be close to what you had before, assuming no matrix damage occurred.

Common Reasons Toenails Fall Off

The cause of nail loss shapes the regrowth process. A toenail that detaches cleanly after a single traumatic event, like dropping something heavy on your foot, generally regrows with fewer complications than one lost to a prolonged fungal infection. Here are the most common scenarios:

• Direct trauma: A heavy object strikes the toe, blood pools beneath the nail (a subungual hematoma), and eventually the nail loosens and separates. In many cases the hematoma can be drained early with a small puncture, relieving pressure and sometimes saving the nail.² If drainage happens soon after the injury, the nail may survive, and you skip the regrowth wait entirely.
• Repetitive microtrauma: Runners and hikers frequently lose toenails because of repeated pressure against the front or top of the shoe. The nail gradually turns black, lifts, and falls off. Because the matrix is usually undamaged, regrowth tends to be straightforward.
• Fungal infection: Onychomycosis can thicken and distort the nail over months or years until it crumbles away or is removed for treatment. Regrowth after fungal damage often requires antifungal medication running alongside the regrowth period to prevent the new nail from being re-infected.
• Surgical removal: Doctors sometimes remove a toenail to treat a severe ingrown nail, a nail bed tumor, or an infection that cannot be reached otherwise. Depending on the procedure, the matrix may be left intact for regrowth or intentionally destroyed to prevent the nail from returning.

Protecting the Nail Bed While You Wait

A nail bed without its nail is vulnerable. The nail plate normally acts as a shield against friction, pressure, and bacteria. Without it, the exposed tissue can dry out, crack, or pick up infections. Keeping the area clean, dry, and lightly bandaged during the first few weeks is the most important thing you can do. A simple adhesive bandage or gauze pad, changed daily, provides enough protection without smothering the area.

Avoid tight shoes that press directly on the exposed nail bed. Open-toed sandals work well in warm weather; in colder months, a shoe with a roomy toe box reduces contact. Socks made of moisture-wicking material help keep the area dry, which matters because a damp nail bed is an invitation for fungal colonization. If you notice green or yellow discharge, increasing redness, or a foul smell, see a doctor. Those are signs of bacterial or fungal infection that can slow regrowth or damage the nail bed further.

When the Nail Matrix Is Damaged

The matrix is the engine of nail production. If it is scarred, crushed, or surgically destroyed, the new nail will grow back abnormally or not at all. Research on nail matrix injuries has shown that scarring in the matrix leads to lasting nail deformities in much the same way that skin scarring leads to visible marks on the body.³ The resulting nail might come in ridged, split down the middle, abnormally thick, or permanently thin and fragile.

If only part of the matrix was damaged, you may get a nail that is deformed in one section but normal in the rest. A deep laceration across the matrix, on the other hand, can produce a permanent longitudinal split. There is no reliable way to repair a scarred nail matrix at home. Surgical options exist for severe cases, though success varies and the procedures tend to be specialized. The honest answer is that significant matrix damage often means the nail will never look exactly the way it did before, even if it does grow back.

Fungal Infections and Regrowth

Fungal nail infections are among the most frustrating complications during toenail regrowth. The same warm, moist environment inside shoes that encourages normal nail growth is also ideal for dermatophyte fungi. If you lost a nail because of fungal infection, treating the fungus before or during regrowth is critical. Otherwise, the new nail grows into an already-contaminated nail bed and ends up thick, discolored, and crumbly again.

Treatment courses for toenail fungus are long precisely because the nail grows so slowly. For common dermatophyte infections, oral antifungal therapy typically runs about 12 weeks with daily terbinafine, or several months with pulse-dosed itraconazole or weekly fluconazole. Some patients need additional treatment between months six and nine if the infection proves stubborn.⁴ The medication works on the new nail as it forms, so you are effectively treating the nail that is growing in, not the one that already fell off. This is why treatment duration tracks with growth duration.

Ingrown Nails During Regrowth

A regrowing toenail can become ingrown if the edges curl into the skin as the nail plate extends forward. This is especially common when a nail grows back after trauma or surgery, because the new nail plate is often thinner and more pliable, making it prone to bending into the surrounding skin fold. The big toe is the usual culprit.

Mild ingrown nails can often be managed at home by soaking the foot in warm water, gently lifting the nail edge, and placing a tiny wisp of cotton underneath to encourage it to grow over the skin rather than into it. Persistent or infected ingrown nails usually need professional treatment. One Cochrane review found that partial nail removal combined with chemical treatment of the matrix using phenol was significantly more effective at preventing recurrence than surgical removal alone.⁵ A separate study comparing wedge resection to phenol treatment found no recurrences in the phenol group and higher patient satisfaction due to less pain.⁶ If you are dealing with repeated ingrown nails during regrowth, a podiatrist can advise whether a chemical matrixectomy makes sense for your situation.

Does Nutrition Speed Up Regrowth

The supplement aisle is full of products claiming to make nails grow faster and stronger. Biotin is the most commonly marketed ingredient for nail health. The evidence, though, is limited. A review of biotin studies found that every case showing improvement involved patients who had an underlying condition causing poor nail growth, such as a biotin deficiency or brittle nail syndrome. In those cases, supplementation did help.⁷ For people without a deficiency, the benefit is far less clear.

A broader review of vitamins and nail health concluded that there is no strong evidence supporting vitamin supplementation for improving general nail health or the appearance of diseased nails, and that taking large doses of supplements without a diagnosed deficiency can carry risks.⁸ A balanced diet with adequate protein, iron, zinc, and B vitamins supports normal nail production. But if your diet is already reasonably varied, mega-dosing supplements is unlikely to make a regrowing toenail arrive any faster.

Footwear, Age, and Other Factors That Slow Things Down

Tight, poorly fitting shoes are one of the most underappreciated obstacles to healthy toenail regrowth. Chronic mechanical pressure on the toes can distort a growing nail, encourage ingrown edges, and contribute to various nail deformities. Elderly patients are particularly susceptible, with research documenting a wide range of nail problems in older adults linked to biomechanical stress and repeated low-grade trauma from footwear.⁹

Several conditions can slow toenail growth independently of footwear:

• Diabetes: Reduced blood flow to the feet and diabetic neuropathy both interfere with nail growth. If you have diabetes, monitoring a regrowing toenail closely is especially important because reduced sensation means you may not notice infections or ingrown edges until they become serious.
• Peripheral vascular disease: Any condition that limits circulation to the lower extremities slows the delivery of nutrients and oxygen that the nail matrix needs to produce new cells.
• Psoriasis and other skin conditions: Autoimmune conditions that affect the skin can also target the nail matrix, leading to pitting, ridging, or abnormal texture in the regrowing nail.
• Hypothyroidism: An underactive thyroid slows metabolism body-wide, and nail growth is no exception. If your nails have always been slow-growing, it may be worth checking thyroid function.

How Chemotherapy and Other Drugs Affect Nail Growth

Certain medications can temporarily halt nail production or distort the regrowing nail. Chemotherapy drugs are the most dramatic example. Because these drugs target rapidly dividing cells, and the nail matrix consists of continuously dividing cells, nails are caught in the crossfire. The result is often visible as horizontal grooves across the nail called Beau’s lines, which mark periods when the matrix slowed or stopped production.¹⁰

These changes typically affect multiple or all nails at once and appear in a pattern that tracks with the timing of drug administration.¹¹ In severe cases, nails may detach entirely. The good news is that drug-related nail changes are usually reversible once treatment ends. The nail matrix resumes normal activity, and a new, healthy nail gradually replaces the damaged one over the standard regrowth period. If you are undergoing chemotherapy and notice nail changes, let your oncology team know, but understand that this is an expected side effect rather than permanent damage.

Can Anything Make Toenails Grow Faster

Beyond nutrition, some people look for topical treatments to accelerate the process. A small pilot study tested 5% topical minoxidil, the same drug used for hair regrowth, on nails. The treated nails grew at about 4.3 mm per month compared with 3.9 mm per month in untreated nails during the first month, a statistically significant difference.¹² That study measured fingernails rather than toenails, and it was small, so the findings are preliminary. Still, the results suggest that minoxidil may have a modest growth-stimulating effect on nail tissue, likely by increasing local blood flow.

This is not a widely recommended treatment, and the absolute increase is small. Even with a boost, you are still looking at many months for a full toenail. The practical takeaway is that no currently available product will dramatically compress the timeline. Your best bet for the fastest possible regrowth remains the boring advice: good circulation, adequate nutrition, no repeated trauma to the toe, and patience.

Cosmetic Options While the Nail Grows In

Waiting over a year for a toenail to grow back is a long time to feel self-conscious about an exposed or partially-covered nail bed, especially during sandal season. Some people turn to artificial nails or nail prosthetics designed specifically for toes. These range from salon-applied acrylic or gel overlays to medical-grade prosthetic nails that a podiatrist can bond to the nail bed.

Artificial nails can look very convincing, but there is an important caveat. Wearing them requires attention to hygiene, because the gap between a prosthetic nail and the natural nail bed can trap moisture and bacteria. Research into cosmetic nail products has emphasized that the sanitary conditions during application are critical for preventing infections underneath artificial nails.¹³ If you go this route, make sure the technician or provider uses sterilized tools, and remove the prosthetic periodically to inspect the nail bed for signs of infection or irritation. Prosthetic nails are a reasonable solution for special occasions, but wearing one continuously without breaks can interfere with the regrowing nail’s ability to breathe and bond properly to the bed.

When to See a Doctor

Most toenail regrowth takes care of itself with basic wound care and time. But certain situations warrant professional evaluation:

• No visible regrowth after three months: By this point, you should see at least a thin new nail emerging from the base. If nothing is appearing, the matrix may be damaged or an underlying condition could be interfering.
• Signs of infection: Redness, swelling, pus, warmth, or a foul odor around the nail bed means bacteria or fungi have taken hold. Early treatment prevents the infection from reaching deeper tissues or bone, which is particularly important for people with diabetes.
• Persistent pain: Some tenderness is normal in the first couple of weeks after losing a nail, but pain that continues or worsens could indicate a fracture of the underlying bone (the distal phalanx) that was missed during the initial injury.
• Dark streaks in the new nail: A brown or black longitudinal streak in a regrowing nail is usually a benign result of trauma to the matrix. Rarely, it can indicate subungual melanoma. Any new dark streak that appears without a clear history of trauma, or that grows wider over time, should be evaluated by a dermatologist.
• Severely deformed regrowth: If the new nail is growing in with a pronounced split, extreme thickness, or significant curvature, a podiatrist or dermatologist can assess whether the matrix sustained damage that might benefit from surgical correction.

For most people, losing a toenail is an exercise in patience more than anything else. The process is predictable, the body handles it largely on its own, and intervention is only needed when something goes wrong along the way. Keep the area clean, give the new nail room to grow, and check in periodically to make sure things look like they are moving in the right direction.