
Ridges in your nails can be harmless or they can indicate an underlying health condition. Vertical ridges are often a sign of ageing, while horizontal ridges can point to issues like malnutrition, serious nail injury, or Beau's lines. Beau's lines may also appear in people who have undergone chemotherapy or had mumps or syphilis.
| Characteristics | Values |
|---|---|
| Vertical lines | Sign of ageing, dry skin, eczema, or hypothyroidism |
| Horizontal lines | Malnutrition, serious nail injury, Beau's lines, or a previous illness such as mumps or syphilis |
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What You'll Learn

Vertical ridges are often a sign of aging
Vertical ridges on your nails are usually harmless and are often a sign of ageing. Many people develop vertical ridges on their nails as they get older. These lines aren't dangerous, but they can be a sign of a current or past illness. They can also be caused by a nutrient deficiency, such as a mineral or vitamin deficiency, although this is extremely rare in countries like the UK. Vertical ridges can also be caused by skin conditions, such as very dry skin or eczema, or by thyroid disease, which can cause thick, brittle nails with vertical ridges.
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Horizontal ridges can point to malnutrition
Ridges in your nails are usually harmless but can sometimes indicate underlying health issues. Vertical ridges are often a sign of ageing, while horizontal ridges can point to malnutrition, serious nail injury, or Beau's lines. Beau's lines are a condition that interrupts nail growth and can be caused by a previous illness, such as mumps or syphilis, or by chemotherapy. They may also be a sign of a current mineral or vitamin deficiency, although this is rare in countries like the UK. If you have horizontal ridges in your nails, it is important to consult a doctor or dermatologist to determine the underlying cause and receive appropriate treatment. Treating the underlying cause can help smoothen your nails and improve their appearance.
Horizontal ridges in your nails can be a sign of malnutrition, indicating that your body is not receiving the proper nutrients it needs. Malnutrition can lead to deficiencies in essential vitamins and minerals, such as vitamin B12, iron, or zinc, which are necessary for nail health. A balanced diet that includes a variety of nutrient-rich foods can help prevent malnutrition and promote healthy nail growth.
Certain medical conditions, such as thyroid disease, can also contribute to malnutrition and nail ridges. Hypothyroidism, for example, can cause thick, brittle nails with vertical ridges. It can also lead to nail crumbling or breakage. Consulting a healthcare provider can help identify any underlying medical conditions that may be causing malnutrition and nail ridges.
While horizontal ridges can be a sign of malnutrition, it is important to note that they can also be caused by other factors, such as nail injuries or Beau's lines. Therefore, if you notice persistent ridges in your nails, it is advisable to consult a healthcare professional for a proper diagnosis and treatment plan. They can help determine the underlying cause and provide guidance on improving your nail health.
In addition to malnutrition, horizontal ridges in your nails can also be a sign of a serious nail injury. Trauma to the nail, such as hitting it with a hammer or having a foreign object embedded in it, can cause horizontal ridges to form. In such cases, the ridges may be accompanied by other visible damage to the nail, such as dents or cracks. If you suspect a nail injury, it is important to seek medical attention, especially if there is pain or discomfort associated with the injury.
While horizontal ridges can indicate malnutrition or other health issues, it is important to consult a healthcare professional for a proper diagnosis. They can help determine the underlying cause and rule out any serious conditions. Additionally, treating the underlying cause can often lead to smoother, healthier-looking nails. If you have concerns about the appearance or health of your nails, don't hesitate to seek professional advice.
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Horizontal ridges can be caused by a serious nail injury
Horizontal ridges on your nails can be caused by a serious nail injury. This could be something obvious, like hitting your nail with a hammer, or something more subtle, like a rose thorn embedded in the nail.
If you have horizontal ridges on your nails, it's important to see a doctor as soon as possible for a diagnosis. Horizontal ridges can be a sign of an underlying condition that requires treatment. In some cases, your nails may stop growing until the condition is treated.
One possible underlying condition is Beau's lines, which can be caused by a previous illness, such as mumps or syphilis, or by chemotherapy. If you have repeated Beau's lines, it could indicate that you have a condition that is interrupting the growth of your nails.
While it is rare, horizontal ridges can also be a sign of a nutrient deficiency, such as a mineral or vitamin deficiency.
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Horizontal ridges can be caused by Beau's lines
Horizontal ridges on your nails can be caused by a condition known as Beau's lines. Beau's lines are often a sign of an underlying condition that requires diagnosis and treatment. They can be caused by a previous illness, such as mumps or syphilis, and may also appear in people who have undergone chemotherapy. If you have repeated Beau's lines, it could be a sign that you have a condition that keeps interrupting the growth of your nails. Beau's lines can also be caused by malnutrition or a serious nail injury. If you develop horizontal nail ridges, you should see your doctor for a diagnosis as soon as possible.
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Horizontal ridges can be a sign of an underlying condition that requires diagnosis and treatment
Horizontal ridges on your nails can be a sign of an underlying condition that requires diagnosis and treatment. While vertical ridges are often a sign of ageing, horizontal ridges can point to issues like malnutrition, serious nail injury, or Beau's lines. Beau's lines may also appear in people who have undergone chemotherapy, or who have had mumps or syphilis. If you have repeated Beau's lines, it could be a sign that you have a condition that keeps interrupting the growth of your nails. In some cases, the nails may stop growing until the condition is treated.
If you have horizontal ridges on your nails, it is important to see your doctor for a diagnosis as soon as possible. Your doctor can help you determine why you have ridges in your nails, and your nails will usually become smoother if you treat the underlying cause. While it is rare, horizontal ridges can also be a sign of a mineral or vitamin deficiency.
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Frequently asked questions
Vertical lines on your nails are usually a sign of ageing. They can also be caused by skin conditions such as eczema or dry skin, or by thyroid disease.
Horizontal lines on your nails can be a sign of an underlying condition that requires diagnosis and treatment. They can be caused by malnutrition, serious nail injury, or Beau's lines. People who have had mumps, syphilis or chemotherapy may also get horizontal ridges in their nails.
No, lines on your nails are usually harmless. Vertical lines are not dangerous.
If you have horizontal lines on your nails, you should see your doctor for a diagnosis as soon as possible. If you have vertical lines, you can connect to a dermatologist in your area to determine the cause.














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