
Fingernails are prone to damage due to their location at the back of fingertips. Long nails are more susceptible to damage and can be pried away from the nail bed when jammed or hit. This condition, known as onycholysis, is the separation of the nail from the nail bed. It can be caused by injury, fungal infections, or certain medications and skin conditions. While the detached portion of the nail will not reattach, the nail will eventually regrow, which can take several months. Proper care, such as keeping the area clean and dry, is crucial to prevent infection and promote healing.
| Characteristics | Values |
|---|---|
| Regrowth | The nail will regrow in 4-6 months for fingernails and 12-18 months for toenails. |
| Pain | It can be very painful to rip a fingernail from the quick. However, onycholysis, or nail separation, is usually not painful. |
| Treatment | Treatments include removing the nail, keeping the area dry, and waiting for a new nail to grow. Filing sharp edges, applying petroleum jelly, and covering the area with a bandage can help. |
| Prevention | Keeping nails short can help prevent nail injuries. |
| Causes | Causes include injury, fungal infection, skin conditions, chemicals, medications, and severe illnesses. |
| Symptoms | Symptoms of nail separation include fatigue, dizziness, headaches, and a fast heartbeat. |
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What You'll Learn
- Fingernails can regrow in 3-6 months, toenails in 12-18 months
- Nail injuries can be caused by trauma, like smashing a finger in a door
- A detached nail may be replaced with a special material to protect the nail bed
- Onycholysis is when a nail separates from the skin it rests on, usually without pain
- Nail fungi can be difficult to treat and require a full course of medicine

Fingernails can regrow in 3-6 months, toenails in 12-18 months
Fingernails and toenails are made of keratin, a protein that forms the cells that make up the tissue in nails. Nails form under the skin and push old cells through as they grow. Fingernails grow about a tenth of a millimeter a day, and toenails grow even slower.
Fingernails grow back in about 3 to 6 months, while toenails take about 12 to 18 months to regrow. The rate of regrowth can vary from person to person and can be influenced by factors such as overall health, age, hormone levels, and the season. For example, nails tend to grow faster during the summer and in people who are younger. Additionally, the dominant hand's nails grow faster than the non-dominant hand.
If you lose a nail, it is important to keep the nail bed clean, dry, and protected while it heals, which can take about 7 to 10 days. The new nail will likely have grooves or ridges and may be misshapen. To promote nail health and prevent breakage, it is recommended to take biotin supplements and use nail hardeners sparingly.
While waiting for the nail to regrow, the remaining part of the nail will continue to grow and can be trimmed to maintain an even length. This is a safe and effective way to ensure the nail looks normal while waiting for the ripped part to grow back.
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Nail injuries can be caused by trauma, like smashing a finger in a door
Nail injuries are common and can be caused by trauma, such as smashing a finger in a door, or hitting it with a hammer or another heavy object. A nail injury can also be caused by cutting the finger with a knife or another sharp object.
If the nail is torn or jagged, it should be trimmed to avoid snagging and causing further injury. Nails will not reattach to the nail bed after they have separated from it, but a new nail will usually regrow slowly. The nail bed will take about 7 to 10 days to heal, and a new fingernail will take about 4 to 6 months to grow back, replacing the lost nail. Toenails take about 12 months to grow back. The new nail may have grooves or ridges and be somewhat misshapen, and this may be permanent.
If the nail cannot be reattached, a healthcare provider may replace it with a special type of material that remains on the nail bed as it heals. Antibiotics may be prescribed to prevent infection. If there is a broken bone, a wire may be placed in the finger to keep the bone in place.
For a larger bruise, a small hole may be created in the nail to drain blood and fluid and relieve pressure and pain. This procedure is known as treating a subungual hematoma, which appears dark red under the nail and causes throbbing pain.
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A detached nail may be replaced with a special material to protect the nail bed
Fingernails can rip off entirely from the nail bed, and they will grow back over time. However, this can take anywhere from four to six months for fingernails and up to 12 months for toenails. The new nail will likely have grooves, ridges, and be somewhat misshapen, and this may be permanent.
In the meantime, if you lose a fingernail, it is important to protect the nail bed as it heals. The nail bed is the skin on which the nail rests. The nail helps to increase sensory perception in the pulp and aids in picking up small objects. Therefore, losing a nail can be functionally incapacitating.
If the nail cannot be reattached, a doctor may replace it with a special type of material that remains on the nail bed as it heals. This material acts as a protective splint for the finger. The doctor may prescribe antibiotics to prevent infection. Additionally, it is recommended to keep the hand or foot elevated above the level of the heart to reduce throbbing and swelling.
In the case of very distal amputations in young children, the amputated part can be defatted and applied as a composite graft. This procedure may be attempted on older children but may not yield equally good results.
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Onycholysis is when a nail separates from the skin it rests on, usually without pain
Onycholysis is a common nail disorder where the nail plate separates from the nail bed, usually without causing any pain. It typically affects a single nail, but can sometimes occur in multiple nails. The condition can last for several months or over a year, and the affected nail may change colour to yellow, greenish, purple, white or grey. Onycholysis can be caused by a variety of factors, including nail injuries, fungus, yeast infections, skin disease, nail infections, tumours, or systemic events. It can also be caused by certain medications, such as chemotherapy drugs, non-steroidal anti-inflammatory drugs (NSAIDs), and retinoids.
If you experience onycholysis, it is important to pay attention to your nails and seek medical advice if necessary. The treatment for onycholysis depends on the underlying cause, and it is important to finish the full course of treatment to prevent the condition from returning. Nails that have experienced onycholysis may take 4 to 6 months to fully regrow, and it is recommended to keep them short and protected from further damage during this time.
In some cases, onycholysis may indicate a more serious underlying condition, such as a yeast infection or thyroid disease. If you experience additional symptoms such as fatigue, dizziness, headaches, or a sore tongue, it is important to consult a healthcare professional.
While waiting for the nail to regrow, it is important to take care of your nails and prevent infection. This includes regularly trimming the nails, washing your hands, and using antifungal or antimicrobial soaks. It is also recommended to avoid potential irritants such as nail enamel, enamel remover, solvents, and detergents. With proper care and treatment, onycholysis can resolve without causing any permanent damage.
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Nail fungi can be difficult to treat and require a full course of medicine
A torn fingernail will grow back, but the part that is missing will not regrow. The remaining nail continues to grow from the base, and the ripped part grows at the same rate, eventually covering the nail bed. It may take up to six to nine months for fingernails to grow out completely, and 12 to 18 months for toenails.
Now, if the nail bed is damaged due to a fungal infection, it can be difficult to treat. Fungi can get between your nail and nail bed through cracks or cuts in your fingers or toes. The infection causes the nail to become discoloured, thickened, and distorted. It may turn thick, yellow, and brittle, with white spots and streaks.
Nail fungus treatment usually begins with trimming the infected nail, cutting it back to where it attaches to the finger or toe. A dermatologist may also scrape away debris under the nail to get rid of some of the fungus. To completely eliminate the infection, you may need antifungal medication. This could be in the form of pills or medicine applied to the nail. It is important to finish the full course of medicine to prevent the fungus from returning and becoming harder to treat. Some treatments need to be applied daily, while others are applied weekly.
If you have a severe infection or other treatments are ineffective, your doctor may recommend removing the nail to get rid of the infection. Laser treatment is another option for stubborn infections, but it may need to be repeated several times for a year and can be expensive.
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Frequently asked questions
Ripping a fingernail from the quick can be very painful. To treat the injury, you should first gently wash the wound, especially if it's bleeding. Then, cover the area with a bandage and keep it dry to prevent infection. You should also apply petroleum jelly to the nail bed. If the injury is severe or your finger is swollen, you should seek medical attention.
It typically takes around four to six months for a new fingernail to grow back, although some sources state that it can take up to 12 or even 18 months for the nail to completely grow back. During this time, you should keep your fingertip covered.
To prevent your fingernail from ripping, it's recommended to keep your nails trimmed short so they don't catch on objects. You should also be careful to keep your hands out of the path of sharp objects and machinery, and to wear appropriate footwear to avoid toe stubbing.









































