Caleb Foster
Nails are made in the nail matrix, which consists of the germinal matrix and the sterile matrix. Injuries and health conditions can damage the nail matrix and affect nail growth. However, with proper treatment, damaged nails can grow back, although it may take up to 6 months for fingernails and 18 months for toenails.
| Characteristics | Values |
|---|---|
| Nail regeneration | Nails have good regeneration capacity |
| Nail growth rate | Fingernails grow at a rate of 0.13 inches per month; toenails grow at about half the rate of fingernails |
| Nail growth time | Fingernails grow back in 3-6 months; toenails in up to 18 months |
| Factors affecting nail growth | Ageing, diseases, severe eczema, nail psoriasis, subungual melanoma, fungal infections, skin conditions, chemicals, medicines, severe illnesses, diabetes, peripheral arterial disease, immune system problems, anemia, overuse of nail polish, weak nails, kidney disease, heart disease, rheumatoid arthritis, liver disease |
| Nail damage treatment | Home treatment, medical treatment, surgery, antibiotics |
| Nail bed care | Keep dry, clean, and covered with petroleum jelly or neomycin ointment and a bandage |
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What You'll Learn
- Nails have good regeneration capacity, but they grow back slowly
- Fingernails can take 3-6 months to grow back, while toenails can take up to 18 months
- Severe eczema, psoriasis, and skin cancer can affect nail growth
- Injuries to the nail bed and matrix can cause slow nail growth for about 3 months
- Home treatment can help relieve pain, prevent infection, and promote healing
Nails have good regeneration capacity, but they grow back slowly
Nails have an impressive ability to regenerate, even after sustaining damage or being removed. However, it's important to note that this process can take a significant amount of time, and regrowth occurs at a slow pace.
The nail matrix, which consists of the germinal matrix and the sterile matrix, is responsible for nail growth. When a nail is damaged or falls off, it is usually possible for it to grow back with proper care and time. In most cases, the nail matrix will heal, facilitating the regeneration of the nail.
Fingernails and toenails have different growth rates, with toenails growing at about half the speed of their finger counterparts. On average, it can take up to six months for a fingernail to fully regrow and up to 18 months for a toenail. During this period, it is crucial to keep the nail bed clean and dry to prevent infection and promote healing.
Certain conditions can affect the nail matrix and interfere with nail growth. For example, severe eczema can cause Beau's lines, pitting, and texture or colour changes. Nail psoriasis, which affects up to 80% of people with psoriasis, can lead to white lines, pitting, and crumbling of the nail. Additionally, subungual melanoma, a type of skin cancer, can cause brown or black discolouration on the nail.
In some cases, nail damage may result in permanent deformities or defects. Injuries to the nail bed and matrix can cause nails to grow more slowly for about three months, and significant damage can lead to permanent deformation. Therefore, it is important to protect the nail bed and matrix during the regrowth process and seek medical attention if necessary.
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Fingernails can take 3-6 months to grow back, while toenails can take up to 18 months
Nails are formed in the nail matrix, which consists of two parts: the germinal matrix and the sterile matrix. About 90% of nail growth comes from the germinal matrix. Nails have good regeneration capacity, but they grow slowly.
Fingernails grow at a rate of 0.13 inches or one-tenth of a millimeter per month. This means that it takes about 3 to 6 months for a completely removed fingernail to grow back. Toenails, on the other hand, grow at about half or one-third the rate of fingernails. Therefore, it can take up to 18 months for a completely removed toenail to grow back.
The growth rate of nails can be affected by various factors. Aging and diseases may decrease blood flow to the hands and feet, slowing nail growth. Certain injuries and illnesses can also damage the nail matrix, affecting how your nails look or grow. Severe eczema, for example, can interfere with nail growth, resulting in Beau's lines, pitting, and texture or colour changes. Nail psoriasis, which affects up to 80% of people with psoriasis, can cause white lines, pitting, and crumbling of the nails.
It is important to note that detached or torn nails can be painful and unsightly. If there is any sign of infection, such as increasing heat, redness, pain, tenderness, swelling, or pus, it is recommended to seek medical attention. In some cases, a physician may need to perform a minor surgical procedure on the nail bed to improve the nail's appearance.
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Severe eczema, psoriasis, and skin cancer can affect nail growth
Several factors can damage nails, including severe eczema, psoriasis, and skin cancer, or the treatments for these conditions. Nails that have been affected by these conditions may grow back, but it is a slow process and treatment may be required to manage symptoms and prevent further damage.
Severe eczema, or eczema that has gone untreated, can cause deformities in the nails. Pompholyx eczema, for instance, can affect the nail folds and skin around the nails (cuticles), resulting in swelling. Nail eczema can also cause pitting in the nails, which appears as dents or holes. While these symptoms can be treated with topical steroids, more severe cases may require medication and lifestyle changes to manage.
Psoriasis can also affect nail growth and appearance. Nail psoriasis causes grooves in the nails, blood beneath the nail, and lifting of the nail from the finger. It can also cause ridges, thickening, and discolouration. Treatment for nail psoriasis typically involves medication applied directly to the nails, injected into or near the nails, or taken orally to treat the skin and nails. Nails grow slowly, so treatment for nail psoriasis usually takes at least six months and needs to be applied once or twice a day.
Cancer treatments, including radiation therapy, chemotherapy, stem cell transplants, targeted therapy, and immunotherapy, can also cause skin and nail changes. These changes may include dryness, itching, redness, darkening of the skin, blistering, peeling, and thickening of the skin. While these side effects are often mild, they can be managed with creams, lotions, and mild soaps recommended by a healthcare professional. Keeping nails clean, cut short, and protected during household tasks can also help prevent nail problems.
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Injuries to the nail bed and matrix can cause slow nail growth for about 3 months
Injuring your nail bed or matrix can be very painful and may cause slow nail growth for about three months. Nails with minor damage will have minor defects, while more significant damage can result in permanent deformities. If the nail bed is injured, the nail plate may lift away from it, causing whitish changes in the nail.
The nail matrix is where your fingernails and toenails are formed. It consists of two parts: the germinal matrix and the sterile matrix. About 90% of nail growth comes from the germinal matrix. Certain injuries and illnesses can damage the nail matrix and affect how your nails look or grow. However, with proper treatment, healthy nails will usually grow back. It is rare for the nail matrix to be permanently damaged, but if this does occur, you may need to protect your finger or toe during physical activity.
If your nail has been injured, you should check for tears or lacerations to the matrix or nail bed. If there are none, remove any unattached remnants of the nail with a nail clipper, and clean the nail bed with a soapy washcloth and water. File down any sharp ends to prevent them from catching on clothing or socks. Cover the nail bed with petroleum jelly or neomycin ointment, and dress it with a clean bandage. As long as there is no permanent damage to the nail matrix or nail bed, the nail should regrow normally.
If there is significant damage to the areas around the nail, or if there are signs of infection, swelling, increasing pain, or pus, you should see a doctor. If there is bleeding between the nail and the nail bed, a doctor can drill a tiny hole in the nail plate to relieve the pressure of the accumulated blood. An X-ray may also be necessary to determine if the bone has been damaged.
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Home treatment can help relieve pain, prevent infection, and promote healing
Home treatment can help relieve pain, prevent infection, and promote the healing of damaged nails. Firstly, it is important to stop any nail-biting, picking, or tearing behaviours, as these may be the cause of the damage. Coating your nails with lemon juice or using a nail-biting reducer nail polish can help deter nail biting. Wearing socks or mittens to bed can also prevent unconscious nail biting during sleep.
To promote healing, it is recommended to moisturize nails daily with an oil or serum. Nails should be allowed to heal on their own for 2-3 weeks without nail polish, as chronic chemical exposure can dry out nails. Tea tree oil can be applied twice daily to discolored, brittle, or odorous nails, due to its anti-fungal properties. Alternatively, lemon juice can be applied with a cotton ball to kill fungi without using tea tree oil.
To prevent infection, it is important to maintain good nail hygiene by regularly washing your hands and keeping your nails clean. When trimming your nails and cuticles, avoid cutting them too short or too close to the nail fold, respectively. Gloves should be worn when working with harmful substances or doing household chores, as corrosive elements in cleaners can damage nail beds.
It is also beneficial to consume foods that promote nail health, such as carrots, sweet potatoes, spinach, kale, milk, strawberries, broccoli, and seafood. Additionally, oral biotin supplements are recommended by dermatologists to encourage strong and healthy nail growth.
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Frequently asked questions
Fingernails grow at a rate of 0.13 inches or approximately one-tenth of a millimeter per month. It takes about 6 months or longer for a fingernail to grow back. Toenails grow at about half the rate of fingernails, so it can take up to 18 months for a toenail to grow back.
If your nail is torn or detached, it is important to keep the nail bed dry, clean, and covered with petroleum jelly or ointment and a bandage until the nail has grown back. Any sharp ends should be filed down to prevent catching and causing further damage. If there is any sign of infection, such as increasing heat, redness, pain, tenderness, swelling, or pus, seek medical attention.
In most cases, damaged nails will grow back with proper care and treatment. However, severe damage to the nail matrix or nail bed can result in permanent deformation or prevent the nail from growing back entirely. If there is significant damage, it is recommended to consult a physician.
