
Vertical nail splits, medically known as onychoschizia, are a common condition that affects many people. The condition is characterised by a vertical crack in the nail, often starting from the tip of the nail and moving towards the cuticle. This type of nail splitting can be unsightly and uncomfortable and may signal underlying health issues.
| Characteristics | Values |
|---|---|
| Medical name | Onychoschizia |
| Description | Vertical or horizontal crack through the fingernail |
| Nail texture | Soft, thin, brittle |
| Causes | Injury, harsh chemicals, psoriasis, nail fungus, vitamin deficiencies, moisture, anxiety, stress, nail biting, nail picking |
| Additional symptoms | White or red discolouration, bleeding, pain |
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What You'll Learn
- Vertical nail splits are characterised by longitudinal splitting or fraying of the nail plate
- The medical term for vertical nail splits is onychoschizia
- Vertical nail splits can be caused by injury, harsh chemicals, psoriasis, nail fungus or vitamin deficiencies
- Vertical nail splits can be caused by overexposure to moisture, which can occur when doing dishes, washing hands or repeatedly using nail polish
- Vertical nail splits can be caused by nail biting or picking, which is often a side effect of anxiety or stress

Vertical nail splits are characterised by longitudinal splitting or fraying of the nail plate
Vertical nail splits, also known as onychoschizia, are characterised by longitudinal splitting or fraying of the nail plate. This type of nail splitting can be unsightly and uncomfortable and often signals underlying issues, ranging from environmental factors to more complex health conditions. Vertical nail splits often look like a crack starting from the tip of the nail and moving towards the cuticle (the band of tissues near the base of the nail). These splits are often surrounded by white discolouration or some redness if the nail bed is bleeding.
Vertical nail splits can be caused by a number of factors, including injury, harsh chemicals, psoriasis, nail fungus, vitamin deficiencies, and moisture. Women experience split nails twice as often as men, and split nails are more common in people aged 50 and older.
Moisture can cause nails to become weak and brittle, making them more prone to splitting. Overexposure to moisture can occur through activities such as doing dishes, washing hands, or repeated nail polish use. Additionally, picking or biting nails can cause stress to the nail and result in a self-inflicted split or broken nail. Nail biting or picking is often a side effect of anxiety or stress and can damage the tissues underneath and surrounding the nail, causing pain and bleeding.
It is important to treat the underlying cause of vertical nail splits to improve nail health and prevent future occurrences. While you can treat a split nail, if an underlying health condition is causing the splitting, addressing the condition is necessary first. Severe and repeated nail splits can increase the risk of infection and permanent nail bed damage if left untreated.
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The medical term for vertical nail splits is onychoschizia
Vertical nail splits are characterised by a crack forming in the nail, starting from the tip of the nail and moving towards the cuticle. They are often surrounded by white discolouration, or some redness if the nail bed is bleeding. The nail may also feel soft, thin, or brittle.
There are many causes of vertical nail splits, including injury, harsh chemicals, psoriasis, nail fungus, vitamin deficiencies, and moisture. Women experience split nails twice as often as men, and split nails are more common in people aged 50 and older.
It is important to treat vertical nail splits, as severe and repeated nail splits can increase the risk of infection and permanent nail bed damage if left untreated. Understanding the causes of vertical nail splits and how to address them can significantly improve nail health and prevent future occurrences.
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Vertical nail splits can be caused by injury, harsh chemicals, psoriasis, nail fungus or vitamin deficiencies
Vertical nail splits can be caused by a number of factors, including injury, harsh chemicals, psoriasis, nail fungus or vitamin deficiencies.
Vertical nail splits, also known as onychoschizia, are a common condition that affects many people. The nail may feel soft, thin or brittle, and the nail plate may split or fray. This can be uncomfortable and unsightly, and can signal underlying issues, from simple environmental factors to more complex health conditions.
Injury is a common cause of vertical nail splits. Snagging your nails on fabric, smashing your fingers in a door or cutting your fingernail with a sharp object can all cause nail splitting. This can result in a tear in the nail, throbbing pain, or bleeding underneath or around the nail.
Harsh chemicals can also cause vertical nail splits. Overexposure to moisture can cause nails to become weak and brittle, and can lead to the skin around the nail softening. This can occur through activities such as doing the dishes, washing hands, or repeated nail polish use.
Psoriasis, a skin condition that causes red, flaky, crusty patches of skin covered with silvery scales, can also cause vertical nail splits. Nail fungus, which can cause nails to become discoloured, thickened or brittle, is another potential cause.
Finally, vitamin deficiencies can lead to vertical nail splits. Ensuring adequate intake of vitamins such as biotin, vitamin B12, vitamin C, and vitamin D may help to prevent nail splitting.
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Vertical nail splits can be caused by overexposure to moisture, which can occur when doing dishes, washing hands or repeatedly using nail polish
Vertical nail splits, also known as onychoschizia, are a common condition that can be unsightly and uncomfortable. They can be caused by overexposure to moisture, which can occur when doing dishes, washing hands or repeatedly using nail polish.
Moisture weakens nails, making them brittle and easier to break, bend or split. Long-term exposure to moisture can cause the skin around the nails to soften, and the nail itself to become brittle. This is why people who repeatedly wash dishes or their hands, or use nail polish, are more likely to experience vertical nail splits.
Vertical nail splits can also be caused by injury, harsh chemicals, psoriasis, nail fungus, vitamin deficiencies, or anxiety and nervousness. Women experience split nails twice as often as men, and split nails are more common in people aged 50 and older.
If you have vertical nail splits, it's important to treat them to improve your nail health and prevent future occurrences. Severe and repeated nail splits can increase your risk of infection and permanent nail bed damage if left untreated.
To prevent vertical nail splits caused by overexposure to moisture, you can try to reduce the amount of time your nails are exposed to water or nail polish. You can also try to protect your nails by wearing gloves when doing dishes or other activities that involve prolonged exposure to water.
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Vertical nail splits can be caused by nail biting or picking, which is often a side effect of anxiety or stress
Vertical nail splits, also known as onychoschizia, are a common condition that can be unsightly and uncomfortable. They are characterised by a vertical crack that starts at the tip of the nail and moves towards the cuticle. This type of nail splitting can be caused by a number of factors, including injury, harsh chemicals, psoriasis, nail fungus, vitamin deficiencies, and overexposure to moisture. Overexposure to moisture can occur through activities such as doing dishes, washing hands, or repeated nail polish use.
One common cause of vertical nail splits is nail biting or picking. This habit can result in brittle, uneven, and prone-to-splitting nails. Nail biting or picking is often a side effect of anxiety or stress. It can also lead to pain and bleeding by damaging the tissues underneath and surrounding the nail.
If you are experiencing vertical nail splits, it is important to address the underlying causes to improve nail health and prevent future occurrences. This may involve treating any underlying health conditions, reducing exposure to harsh chemicals or moisture, and managing stress or anxiety that may be contributing to nail biting or picking. Severe and repeated nail splits can increase the risk of infection and permanent nail bed damage if left untreated.
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Frequently asked questions
A vertical split in your nail is a common condition known as onychoschizia. It can be unsightly and uncomfortable.
Onychoschizia is characterised by a vertical crack starting from the tip of the nail and moving toward the cuticle. The nail may also feel soft, thin or brittle.
Onychoschizia can be caused by injury, harsh chemicals, psoriasis, nail fungus, vitamin deficiencies, moisture, nail biting, nail picking, or anxiety.
Onychoschizia is more common in women than in men, and more common in people aged 50 and older.
Yes, onychoschizia can be treated. However, if an underlying health condition is causing the nail splitting, this will need to be treated first.











































