Ava Monroe
Fingernails and toenails are composed of protein and fat and are not live tissue. Nails have a good regeneration capacity, but they grow slowly—about one-tenth of a millimeter each day. Fingernails and toenails grow at different rates, with toenails taking longer to regrow. In addition, nails on the dominant hand tend to grow faster than nails on the non-dominant hand. Fingernails can take anywhere from four to six months to grow back, while toenails can take up to 18 months. Nails grow from the nail matrix, which is the factory where new nails are made. Certain injuries and illnesses can damage the nail matrix and affect how your nails look or grow. However, with proper medical care, your nail will usually grow back.
| Characteristics | Values |
|---|---|
| Nail matrix damage | Permanent damage to the nail matrix can prevent the nail from growing back. Minor damage will produce minor defects in the nail. |
| Nail bed damage | Damage to the nail bed can produce whitish changes in the nail. This may be due to onycholysis, where the nail plate lifts away from the nail bed. |
| Nail separation | Nails may separate from the nail bed due to injury, fungal infection, skin conditions, chemicals, medicines, or severe illnesses. |
| Treatment | For nail matrix conditions, treatments include medication, nail trephination, and relieving nail injuries. For nail bed injuries, treatment may involve removing the nail, keeping the area dry, and covering the wound. |
| Regrowth time | Fingernails typically regrow within 3-6 months, while toenails may take up to 12-18 months. Regrowth time varies with age, climate, overall health, and other factors. |
| Prevention | Keeping nails short, wearing well-fitting shoes, and limiting time going barefoot can help prevent nail damage. |
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What You'll Learn
- Fingernails and toenails grow back, but slowly
- Nails grow from the nail matrix, which is the root of the nail
- Nail damage can be caused by trauma, infection, or other reasons
- A doctor can relieve pressure and pain by drilling a tiny hole in the nail plate
- Proper medical care can help nails grow back after falling off
Fingernails and toenails grow back, but slowly
Fingernails and toenails are made of keratin, a protein that also makes up our skin and hair. They protect the soft tissue beneath them and the tips of our toes and fingers. Nails grow back but at a slow rate, with toenails taking longer to regrow than fingernails.
The nail matrix is the "factory" where your body makes new nails. Certain injuries and illnesses can damage the nail matrix and affect how your nails look or grow. If the nail matrix is not damaged, the nail will usually regrow. Minor damage to the nail matrix will produce minor defects in the new nail, while more significant damage can result in permanent deformities.
If a nail falls off due to trauma or injury, it will not reattach. However, with proper medical care, a healthy nail will usually grow back. In the case of severe nail matrix damage, some or all of the nail may not grow back. If there is no permanent damage to the nail matrix or nail bed, the nail will typically regrow and appear normal.
It takes about 4 to 6 months for a fingernail to grow back, and 12 to 18 months for a toenail to regrow. Nails tend to grow slower in older adults, in colder climates, and when the body is sick or malnourished. Nails on the dominant hand tend to grow faster, and trauma or injury can increase the rate of regrowth due to increased blood flow to the injured area.
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Nails grow from the nail matrix, which is the root of the nail
The nail matrix is the root of the nail, and it is the "factory" where your body makes new fingernails and toenails. It is the active tissue that generates cells, which then harden as they move outward from the nail root to the nail plate. The nail matrix is also known as the matrix unguis, keratogenous membrane, or onychostroma. It is the part of the nail bed that is beneath the nail and contains nerves, lymph, and blood vessels. The matrix produces cells that become the nail plate.
The nail matrix has two parts: the germinal matrix and the sterile matrix. The germinal matrix is responsible for about 90% of nail growth, while the sterile matrix accounts for the remaining 10% of cells that make up your nails. The sterile matrix is also crucial in keeping your nail attached to the underlying skin.
Injuries, certain health conditions, and illnesses can damage your nail matrix and affect how your nails look or grow. For example, severe eczema can interfere with nail growth, and nail psoriasis can cause white lines, pitting, and crumbling. Subungual melanoma, a type of skin cancer affecting the nail matrix, can also cause brown or black nail discolouration. Additionally, fungal infections can invade your nails, and illnesses like COVID-19 or pneumonia can interrupt nail growth and cause horizontal ridges.
If your nail matrix is damaged, it can result in various nail imperfections, such as white spots or ridges, and weaken the nail plate, making it more prone to breakage or deformation. Minor damage to the nail matrix can cause temporary changes in nail appearance, while more severe damage can lead to permanent nail deformities or even nail loss. However, with proper treatment and care, your nail matrix can heal, and healthy nails can grow back.
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Nail damage can be caused by trauma, infection, or other reasons
Infection can also cause nail damage. Fungal nail infections are common, with symptoms including cracked, yellow, discoloured, streaked, thickened, or spotted nails. Toenails are more commonly affected than fingernails, as fungi thrive in warm, wet environments, such as shoes and socks. Bacterial infections are another common cause of nail damage. Skin conditions, such as psoriasis, can also cause nail separation.
Other reasons for nail damage include skin conditions, such as eczema, which can affect nail growth and cause changes in texture or colour. Subungual melanoma, a type of skin cancer, can also affect the nail matrix, causing brown or black discolouration. Additionally, certain medications, such as chemotherapy or antibiotics, and severe illnesses can contribute to nail damage.
It is important to note that most nail damage does not require a visit to the doctor or emergency room. However, if there are signs of infection, such as increasing heat, redness, pain, tenderness, swelling, or pus, medical attention is necessary. Home treatment can often help relieve pain, promote healing, and prevent infection. Soaking the affected area in a salt solution, keeping the wound dry and covered, and applying antibiotic ointment can aid in the healing process.
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A doctor can relieve pressure and pain by drilling a tiny hole in the nail plate
Fingernails and toenails are made of protein and fat and are not live tissue. They are produced by the nail matrix, which is the "factory" where new nails are made. Nails grow at a rate of about one-tenth of a millimeter per day, or about one-tenth of an inch per month. This amounts to a regeneration period of 3-6 months for fingernails and up to 18 months for toenails.
The nail matrix is located under the base of the nail, and the lunula, the white crescent shape at the base of the nail, is the only visible part of the matrix. If the nail matrix is not damaged, the nail will typically regrow. However, severe nail matrix damage can result in permanent deformities in the nail or even prevent the nail from growing back altogether.
In the case of a subungual hematoma, where bleeding occurs between the nail and the nail bed, a doctor can relieve pressure and pain by drilling a tiny hole in the nail plate. This procedure, known as nail trephination, must be performed within 48 hours of the injury before the blood clots. It is important to note that if the entire nail is detached from the finger or toe, it cannot be reattached, repaired, or replaced.
Additionally, it is recommended to seek medical attention if there are any signs of infection, such as increasing heat, redness, pain, tenderness, swelling, or pus. Keeping the wound dry and covered is crucial to prevent infection and promote healing.
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Proper medical care can help nails grow back after falling off
Fingernails and toenails are made of protein and fat and are not live tissue. Nails are produced by the nail matrix, which is the "factory" where your body makes new nails. Certain injuries and illnesses can damage the nail matrix and affect how your nails look or grow.
If your nail falls off due to trauma or injury, it will usually grow back with proper medical care. It is rare for the nail matrix to be permanently damaged, preventing your nail from growing back. However, if there is severe nail matrix damage, some or all of your nail may not grow back. In such cases, your healthcare provider can advise you on protecting your finger or toe during physical activity.
Proper medical care for a nail injury involves seeking professional help if there are any signs of infection, swelling, increasing pain, or pus that develops a few days after the injury. A physician may recommend a procedure called nail trephination, which involves drilling a tiny hole in the nail plate to relieve the pressure of accumulated blood. This procedure provides pain relief and helps the new nail grow in correctly and must be performed within 48 hours of the injury.
If there is damage to the nail matrix, you may see defects in the growing nail. Minor damage will result in minor defects, while more significant damage can lead to a permanently deformed nail. In some cases, a minor surgical procedure on the nail bed can improve the nail's appearance. Additionally, keeping the wound dry and covered is essential to prevent infection and promote healing. You can clean and dry the nail bed daily and cover it with a bandage, changing it once a day. Applying an antibiotic ointment can also help prevent infection.
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Frequently asked questions
Fingernails typically take 4 to 6 months to grow back, while toenails can take up to 18 months. However, the rate of regrowth can vary depending on the severity of the injury and other factors such as age and overall health.
If your nail falls off, it's important to keep the nail bed clean, dry, and protected. You should also seek medical advice to ensure proper treatment and care. Minor injuries may only require trimming any unattached nail remnants, cleaning the area, and covering it with a bandage.
Keeping your nails short and wearing well-fitting shoes can help reduce the risk of nail damage. Avoiding barefoot activities and being cautious of your surroundings can also help prevent injuries. Additionally, maintaining a well-rounded diet and good general health can contribute to stronger nails.
