Sophia Delgado
Fingernails and toenails can fall off due to trauma, fungal infections, or other health conditions. Toenails are more susceptible to fungal infections because fungi thrive in warm, wet environments, and shoes and socks provide the perfect conditions for them to grow. Nails grow back, but the time it takes for them to regrow depends on various factors, including the severity of the injury, the reason for nail loss, and individual characteristics such as age and dominant hand. In general, fingernails take between 4 and 6 months to grow back, while toenails can take anywhere from 6 months to 2 years to fully regrow.
| Characteristics | Values |
|---|---|
| Time for nail bed to heal | 7 to 10 days |
| Time for a new fingernail to grow | 4 to 6 months |
| Time for a toenail to grow | 12 months |
| Time for a toenail to grow after medical removal | 6 months to 2 years |
| Time for a toenail to grow (maximum) | 18 months |
| Fingernail growth rate | 0.13 inches per month |
| Toenail growth rate | Half of the fingernail growth rate |
| Factors affecting nail growth rate | Age, climate, season, hand dominance, trauma or injury |
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What You'll Learn
Fingernails take 4-6 months to grow back, toenails take 12-24 months
Fingernails and toenails play an important protective role, shielding the soft tissue beneath them. However, they are susceptible to damage and can fall off due to trauma, fungal infections, or other health conditions. Toenail fungus, for instance, thrives in warm, wet environments, such as shoes and socks, and can be contracted from nail salons or walking barefoot in public spaces.
When a fingernail falls off, it usually takes about 4 to 6 months for it to grow back. The rate of growth is approximately one-tenth of an inch per month, or 0.13 inches per month, which equates to a complete regrowth in 3 to 6 months. In the meantime, it is important to care for the exposed nail bed by keeping it dry, clean, and covered with petroleum jelly and a bandage. This dressing should be changed whenever it gets wet, and one should watch for signs of infection, such as increasing heat, redness, pain, tenderness, swelling, or pus.
Toenails tend to grow back at a slower rate than fingernails, typically taking anywhere from 12 to 24 months to fully regrow. Toenail regrowth may be slower after an injury or trauma, and it can take up to 18 months for the nail to fully recover. It is important to keep the wound beneath the toenail dry and covered to protect the sensitive skin. Applying an antibiotic ointment can help prevent infection, and OTC anti-inflammatory drugs can be used to manage any associated pain.
In both cases of fingernail and toenail loss, it is crucial to address the underlying cause to prevent recurrence. For example, wearing properly sized shoes can help avoid toenail trauma, and breaking nail-biting habits can reduce the risk of nail damage. Additionally, maintaining a well-rounded diet and good general health can contribute to stronger nails that are less prone to detachment.
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Nail matrix damage can cause permanent nail loss
A nail falling off is usually the result of an injury or an underlying health condition. In most cases, the nail will grow back within 4 to 6 months for fingernails and 12 months for toenails. However, severe damage to the nail matrix can cause permanent nail loss.
The nail matrix is the "factory" where your body produces new fingernails and toenails. It is located under the base of your nail, and you can identify it as the lunula, the white crescent shape at the base of your nail. The nail matrix has two parts: the germinal matrix and the sterile matrix. The germinal matrix produces about 90% of the cells that make up your nails, while the sterile matrix contributes the remaining 10% and is crucial for keeping your nail attached to the underlying skin.
Injuries, certain medications, and health conditions can damage your nail matrix and affect nail growth. Mechanical injuries, such as crushing your finger or dropping something heavy on your toe, can injure the nail matrix. Additionally, conditions like severe eczema, psoriasis, and subungual melanoma can interfere with nail growth and cause nail matrix damage. Chemotherapy and other medications can also temporarily affect the nail matrix, leading to slow nail growth and changes in nail colour.
When the nail matrix is damaged, it can result in nail growth disorders, an unfavourable appearance, and pain. Minor damage to the nail matrix can cause temporary changes, such as dents, horizontal ridges, soreness, and texture changes. However, severe or permanent damage to the nail matrix can lead to permanent nail loss. In such cases, the nail may not grow back, and you may need to consider external actions to improve the aesthetics and appearance of the nail using nail styling products.
To promote nail matrix health and prevent damage, it is essential to prioritise nail hygiene, avoid excessive pressure or trauma to the matrix area, and maintain a well-balanced diet for strong and resilient nails. If you suspect damage to your nail matrix, consult a specialist for an assessment and appropriate treatment.
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Nail injuries can lead to infection
A nail injury occurs when any part of the nail becomes injured. This includes the nail, nail bed (skin underneath the nail), cuticle (base of the nail), and the skin around the sides of the nail. Smashing a finger in a door, hitting it with a hammer or other heavy object, or cutting it with a knife or other sharp object can cause a nail injury.
In rare cases, if paronychia is especially severe and goes untreated, the infection can spread beyond the area of the nail. Usually, a healthcare provider can diagnose paronychia by looking at the infected area. Treating paronychia depends on how severe the infection is and whether it has started to spread. Healthcare providers treat paronychia with antibiotics to kill the infection. Providers may also drain pus (thick, infectious fluid that builds up around a wound). They may also culture the fluid to see what specific bacteria might be causing the infection.
If you lose your nail, it will take about 7 to 10 days for the nail bed to heal. A new fingernail will take about 4 to 6 months to grow to replace the lost nail. Toenails take about 12 months to grow back. The new nail will probably have grooves or ridges and be somewhat misshapen. This may be permanent. If you broke a bone in your finger or toe along with the nail injury, it will take about 4 weeks to heal.
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Nails may not reattach after falling off
If a nail falls off due to an injury, it will not reattach. Instead, a new nail will have to grow back in its place. Fingernails grow back in about 3 to 6 months, while toenails can take up to 12 to 18 months to grow back.
In the meantime, home treatment can help relieve pain, promote healing, and prevent infection. Treatment may involve removing the nail, keeping the area dry to prevent infection, and waiting for a new nail to grow. It is important to keep the area clean and to take precautions to prevent infection. Any sharp edges should be filed down to prevent catching the nail and tearing it further. The uncovered nail bed can be covered with petroleum jelly or neomycin ointment and dressed with a clean bandage.
If there is damage to the nail matrix, the growing nail plate will contain a defect. Minor damage will produce minor defects in the nail, while more significant defects can result in a permanently deformed nail. Damage and scarring of the nail bed can produce whitish changes in the nail, which is most likely due to a lifting of the nail plate away from the nail bed (onycholysis). Sometimes a minor surgical procedure on the nail bed can improve the nail's appearance.
If the nail cannot be reattached, a healthcare provider may replace it with a special type of material that will remain on the nail bed as it heals. Antibiotics may also be prescribed to prevent infection.
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Treatments can speed up nail growth
Fingernails take anywhere from 4 to 6 months to grow back, while toenails can take up to 12 months. In the meantime, there are several treatments that can help speed up nail growth and keep your nails strong and healthy.
Treatments to Speed Up Nail Growth
Nail growth begins at the nail matrix, the moon-shaped whitish area at the base of the nail. When the nail matrix is damaged, nail growth can be interrupted or slowed. Therefore, it is important to keep the nail matrix and the surrounding skin healthy.
Oral and Topical Treatments
- Keratin supplements: Keratin is the main protein that makes up nails. Taking a keratin supplement can help build strength and resiliency in your nails. You can take it orally or apply it topically as an oil.
- Biotin: Biotin is a type of B vitamin that helps the body convert food into energy. It is often recommended as a supplement to boost nail and hair strength.
- Calcium: Calcium supplements can help improve nail health.
- Vitamin and mineral-rich diet: Consuming foods rich in vitamins, minerals, and proteins can contribute to healthier and faster nail growth. These include eggs, lean meats, fish, beans, nuts, and leafy greens.
Topical Treatments
- Nail strengtheners: Dermatologist-approved nail strengtheners can help improve nail growth by hardening and increasing the thickness, density, and durability of the nail and cuticle.
- Nail growth treatments: Over-the-counter nail growth serums are available that claim to promote faster nail growth. For example, minoxidil applied topically can stimulate nail growth, but it is important to consult with a doctor before use.
General Nail Care
- Regular nail grooming: Keeping your nails clean, dry, and well-maintained can help boost nail strength and reduce breakage.
- Trimming and shaping: Using sharp manicure scissors or clippers to trim and shape your nails can help keep them neat and healthy.
- Moisturizing: Moisturizing your hands and nails with lotion, especially at the base of the nails and cuticles, can support nail health.
- Avoid nail biting: Biting your nails or cutting them too short can hinder nail growth and strength.
- Protect your nails: Keeping your hands and feet safe from trauma or injury can help prevent nail damage and support nail growth.
While these treatments may help speed up nail growth, it is important to remember that there is no proven way to make nails grow faster. Maintaining a healthy diet and lifestyle, as well as taking care of your overall health, are the best ways to support nail growth and strength.
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Frequently asked questions
It takes between 4 to 6 months for a fingernail to grow back.
Toenails take longer to grow back than fingernails, with estimates ranging from 6 months to 2 years.
Keeping the wound dry and covered, taking biotin supplements, and maintaining a well-rounded diet and good general health can all help to speed up nail regrowth.
If your nail falls off, keep the nail bed dry, clean, and covered with petroleum jelly and an adhesive bandage until the nail has grown back. Change the bandage whenever it gets wet and watch for signs of infection.
