
Onycholysis, or nail separation, can occur when a nail grows under another nail. This condition can be caused by several factors, including injuries, fungal infections, and psoriasis. Treatment options vary depending on the underlying cause and can range from cutting away the affected nail to taking antifungal medications. Maintaining proper nail care habits, such as keeping nails trimmed and avoiding biting them, can help prevent onycholysis and address the issue when it occurs.
| Characteristics | Values |
|---|---|
| Condition | Onycholysis (separation of the nail from the nail bed) |
| Causes | Injury, fungal infection, yeast infection, psoriasis, eczema, melanoma, lupus, thyroid disease, vitamin or mineral deficiency, graft-versus-host disease (GVHD) |
| Symptoms | Nail lifting or peeling, nail discoloration, dents or pits, crumbling nails, abnormal border between pink and white areas of the nail |
| Treatment | Keep nails trimmed short, avoid nail biting, be careful when cleaning under nails, avoid nail products and chemicals, wear gloves, treat underlying fungal or yeast infection, apply diluted tea tree oil, use custom-made insoles for toenail peeling due to uneven gait, nail trephination for bruise under the nail, surgery for subungual melanoma, topical corticosteroids for nail psoriasis, antifungal medication, cuticle oil |
| Prevention | Keep nails short, trim toenails straight across, trim fingernails with a slight curve and not too short, avoid aggressive clipping |
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What You'll Learn

Consult a doctor, not a nail technician
While it may be tempting to seek the help of a nail technician for cosmetic reasons, it is always best to consult a doctor for medical advice and treatment. Nail technicians are not medically trained to treat nail conditions.
In the case of onycholysis, which is the separation of a nail from its nail bed, a doctor can help determine the underlying cause and provide appropriate treatment. Onycholysis can be caused by a variety of factors, including injuries, fungal infections, yeast infections, thyroid disease, vitamin or mineral deficiencies, and graft-versus-host disease (GVHD). It is important to address the root cause of the issue to prevent further complications.
Additionally, severe nail matrix damage can interfere with nail growth and, in some cases, may result in permanent nail loss. A doctor can assess the extent of the damage and provide guidance on promoting nail regrowth. They may recommend procedures such as nail trephination to relieve bruising and correct nail growth, or in more serious cases, surgery may be required to address issues like subungual melanoma.
For hyponychium thickening, where the skin under the fingernail becomes overgrown, a doctor can prescribe treatments such as topical corticosteroids or antifungal medications. They can also advise on the use of cuticle oils to soften thickened skin. By consulting a doctor, you can receive a proper diagnosis and effective treatment options.
In summary, while nail technicians may offer cosmetic solutions, they lack the medical expertise to address the underlying causes of nail issues. Consulting a doctor ensures that you receive proper medical care and guidance, which is crucial for the health and well-being of your nails.
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Avoid creams, bandages, and gloves
If you have a nail growing under another nail, it is important to determine the cause. One possible cause is hyponychium thickening, which is when the skin just under the free edge of your nail overgrows and becomes thicker. This can make trimming nails painful, and some people dislike the appearance. Another possible cause is a fungal nail infection, also known as onychomycosis, which can thicken the nail and the skin tissue beneath it. If you notice any colour changes in a single nail, this could be an indication of subungual melanoma, a type of skin cancer that affects the nail matrix. Seek medical care if you suspect this.
If you have a fungus or yeast growth causing your nail issues, you can prevent it from spreading by taking proper care of your nails. Avoid biting your nails, as this will spread the problem and possibly affect your mouth. If the issue is affecting your toenails, wear clean socks and expose your feet to dry air as much as possible.
If there is no obvious underlying cause, it is recommended to avoid bandages, gloves, or creams on the affected area. This is because these can create a moist environment that encourages bacterial growth. Instead, try using a hairdryer on low heat once or twice a day to keep bacteria at bay.
In addition, it is important to keep your nails short and trimmed to avoid activities that might harm them. Be cautious with nail polish and chemicals, and consider wearing gloves when working with substances that could damage your nails, such as when washing dishes, playing sports, or working outside.
If you are unsure about the cause of the nail issues, it is recommended to consult a dermatologist or medical professional for advice and treatment options.
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Try diluted tea tree oil for fungus
Onycholysis, or nail separation, can be caused by a variety of factors, including injuries, fungi, and yeast infections. While keeping your nails trimmed and maintaining proper nail hygiene can help prevent onycholysis, it's important to address the underlying cause for effective treatment.
If a fungal infection is the culprit, tea tree oil may be a potential solution. Tea tree oil is a natural essential oil with antifungal and antiseptic properties, making it a popular choice for treating nail fungus. Its effectiveness, however, is still the subject of ongoing research. Here are some key considerations and guidelines if you decide to use diluted tea tree oil for treating nail fungus:
Patch Test and Dilution Ratio
Before using tea tree oil, it's crucial to perform a patch test to ensure your skin doesn't have an adverse reaction. Apply a small amount of diluted tea tree oil to the inside of your forearm and cover it with a plaster. If there is no redness, itchiness, or inflammation after 24 hours, it's generally safe to proceed. For dilution, use one to two drops of tea tree oil with 12 drops of a carrier oil like coconut oil, jojoba oil, or sweet almond oil.
Application Methods
There are several ways to apply diluted tea tree oil to the affected nail:
- Soak a cotton ball in the mixture and hold it against the nail for 5-20 minutes.
- Use a cotton swab to apply the mixture to the nail and let it dry.
- Create a nail bath by adding a few drops of tea tree oil to warm water and soaking the affected nails for 20 minutes.
- Add a few drops of the diluted mixture to an oil burner to disperse its antifungal properties into the air.
Precautions and Side Effects
Tea tree oil is generally considered safe for topical use, but it's important to follow certain precautions. Always wash your hands after treating your nails to avoid spreading the infection. Keep your nails clean, neat, and trimmed during the healing process, and avoid direct skin contact with undiluted tea tree oil. If you have sensitive skin, tea tree oil may cause dryness, itching, stinging, redness, or burning. Do not ingest tea tree oil, and consult a doctor before using it on children.
While tea tree oil has shown potential in treating nail fungus, it may take consistent and prolonged use to see results. It's important to remember that current research on its efficacy is not conclusive, and recurrence of nail fungus is common. Always consult your healthcare provider before starting any new treatment, especially if you have concerns or underlying health conditions.
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Keep nails short and trimmed
Keeping nails short and trimmed is an important step in treating onycholysis, a condition where the nail separates from the nail bed. While the affected nail cannot reattach to the nail bed, keeping nails short prevents them from catching on objects and pulling further off the nail bed. This is especially important for toenails, as they can take 8 to 12 months to fully regrow.
To keep nails short and trimmed, it is recommended to cut toenails straight across and fingernails with a slight curve at the edges. Nails should not be cut too short, as this can be painful if the hyponychium, the skin just under the free edge of the nail, has overgrown. Aggressive clipping is not recommended, and it is important to be cautious when cleaning underneath nails, as tools like cuticle sticks and nail brushes can break the skin and cause infection.
In addition to keeping nails trimmed, it is important to avoid biting nails, as this can spread fungal or yeast infections to the mouth. To prevent nails from separating from the nail bed, it is also recommended to avoid products that can irritate the nails or skin around them, such as nail polish, nail gloss, nail hardener, nail polish remover, and fake nails. When engaging in activities that may damage nails, such as washing dishes, playing sports, or working outside, it is advisable to wear gloves.
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Seek medical advice for colour changes
Colour changes in your nails can be indicative of a variety of conditions and should not be ignored. If you notice any discolouration, it is important to seek medical advice as soon as possible.
Yellow Nails
Yellow nails could be the result of wearing red nail polish without a base coat or smoking. However, it may also be indicative of an underlying health condition, such as lung disease or rheumatoid arthritis. In some cases, yellow nails can be a sign of a serious nail infection, which requires immediate treatment.
Green Nails
Green nails are often associated with bacterial infections. Without treatment, bacterial nail infections tend to worsen over time, leading to increased pain and tenderness.
Black Nails
Black discolouration of the nails can be a sign of subungual melanoma, a type of skin cancer that affects the nail matrix. This condition requires immediate medical attention and may necessitate surgery, chemotherapy, or radiation therapy.
White Nails
White nails can be indicative of onycholysis, a condition where the nail separates from the nail bed. This is often caused by trauma to the nail or an allergic reaction. While onycholysis is typically not painful, it can be a sign of an underlying infection or other health issues.
Grey Nails
Grey nails can be associated with onycholysis and may indicate the presence of a fungus or yeast infection. However, it is important to consult a healthcare professional for an accurate diagnosis and appropriate treatment.
In summary, any colour changes in your nails should not be ignored. While some causes may be benign, nail discolouration can also indicate a serious underlying health condition. Therefore, it is always best to seek medical advice to ensure prompt and appropriate treatment.
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Frequently asked questions
This is called onycholysis, which is when a nail separates from its nail bed. It is usually caused by an injury to the nail or the area where the nail starts to grow (nail matrix).
If you have onycholysis, you should visit a dermatologist, especially if it affects multiple nails. Treatment may involve cutting away the separated nail as it grows out, taking antifungal medications, or discontinuing the use of certain nail products.
Fingernails typically take 4 to 6 months to fully regrow, while toenails can take 8 to 12 months.
Nail matrix damage can be caused by injuries, severe eczema, or psoriasis.
To prevent onycholysis, keep your nails trimmed short, avoid biting your nails, and be careful when cleaning underneath your nails.










































