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SEARCHOnycholysis is the separation of the nail plate from the nail bed. While it may look painful, it typically isn’t—at least not at first. But without proper care, this common nail disorder can lead to infections, deformities, and long-term damage.
Onycholysis is the separation of the nail plate from the nail bed. While it may look painful, it typically isn’t—at least not at first. But without proper care, this common nail disorder can lead to infections, deformities, and long-term damage.
In onycholysis, the nail acts like a lever, slowly pulling away from the nail bed. It can be caused by a wide range of factors, including:
Physical trauma
Chemical exposure
Underlying skin conditions or systemic diseases
Certain medications
While this condition often resolves on its own, it can take several months—sometimes up to a year for toenails—to fully recover, depending on severity and cause.
Look for these visual and physical cues:
White or opaque area on the nail where detachment occurs
Thickened skin under the lifted nail
Pitting or indentations on the nail surface
Discoloration, especially if an infection sets in (green for bacterial, white for yeast)
No initial pain, though discomfort may develop if infection or trauma continues
Note: A separated nail opens the door for infections. "An area has opened that’s normally been clean and closed,” says Doug Schoon, an internationally-recognized scientist, author and educator with over 30 years experience in the cosmetic, beauty and personal care industry.
While multiple causes exist, physical trauma is the most common culprit. Other causes include:
Overfiling the natural nail
Vigorous cuticle pushing or cleaning under the nail
Tapping/typing, especially with long nails
Wearing tight shoes (common with toenails)
Blunt force (e.g., slamming a finger in a door)
Nail hardeners or adhesives
Frequent wet work or prolonged water exposure
Allergic contact dermatitis from nail products
Psoriasis or thyroid disease
Fungal or bacterial infections
Medications that affect nail growth
Older clients may be more susceptible due to thinning skin and weaker nail bonds.
Avoid trauma to the affected nail(s)
Keep the area clean and dry
Trim nails short and avoid manipulating the lifted area
Do not attempt to remove the detached portion—this should be handled medically
Refer to a doctor for diagnosis and treatment
If infection is suspected:
A physician may order lab tests to confirm fungal involvement
Medications or antifungals may be prescribed
If you see signs of onycholysis on a client:
Recommend a physician visit for diagnosis
Be gentle with the affected nails
Shorten nail enhancements (without removing them)
Keep nail beds dry during services
Adjust services for lifestyle (e.g., suggest shorter nails for frequent typists)
File aggressively or over-manipulate the nail
Apply nail polish, remover, or enhancement chemicals on the affected nail
Attempt to trim or remove the detached nail
Red Flag: If multiple clients are showing signs of onycholysis, examine your filing technique and service protocol for potential contributors.
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