
Ridges in your nails are visible lines or dents that can run vertically or horizontally. While they are usually harmless, they can sometimes be a sign of a health condition or a previous injury. Vertical ridges are often a sign of ageing, while horizontal ridges can point to issues like malnutrition, serious nail injury, or Beau's lines, which are often a symptom of serious conditions such as acute kidney disease.
| Characteristics | Values |
|---|---|
| Vertical ridges | Sign of ageing |
| Horizontal ridges | Malnutrition, serious nail injury, Beau's lines |
| Beau's lines | Serious conditions, such as acute kidney disease, chronic conditions, serious illness, injury or skin condition |
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What You'll Learn

Vertical ridges are often a sign of ageing
Ridges in your nails are usually harmless but can mean different things. 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 are horizontal ridges or dents in one or more of your fingernails or toenails. They can be caused by an injury, illness, or skin condition that interrupted your nail growth. In some cases, they can be a symptom of an underlying serious condition, such as acute kidney disease.
Vertical ridges commonly develop in older adults. They are usually harmless and are simply a sign of ageing. However, in some cases, they may be a sign of health problems like vitamin deficiencies or diabetes.
If you are concerned about the appearance of ridges in your nails, it is important to pay attention to any other nail changes and consult a healthcare professional. Your healthcare provider or dermatologist may be able to diagnose the cause of the ridges by examining your nails and taking a health history.
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Horizontal ridges can point to malnutrition
Ridges in your nails are usually harmless but can mean different things. 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 are horizontal ridges or dents in one or more of your fingernails or toenails. They are a sign that an illness, injury or skin condition interrupted your nail growth. The thickness and number of Beau's lines also provide clues about the cause: a single Beau's line on one nail may indicate an injury that affected only one finger or toe. Beau's lines on all of your nails can mean that an illness or stress caused them. Multiple Beau's lines on each nail may mean that an illness or trauma happened more than once.
Nail changes associated with malnutrition can include horizontal ridges, as well as other changes such as brittle nails, nail thinning, and nail colour changes. These changes can be a sign that the body is not getting the nutrients it needs to maintain healthy nails. For example, a deficiency in biotin, a B vitamin that is important for nail health, can cause horizontal ridges and other nail changes. Other nutrient deficiencies that can contribute to nail ridges include deficiencies in iron, zinc, and protein.
If you notice horizontal ridges in your nails, it is important to see a healthcare provider to determine the underlying cause. Treating the underlying cause, such as improving your diet or taking supplements, can help to resolve the nail ridges and improve your overall health. In some cases, horizontal ridges may be a sign of a more serious condition, such as acute kidney disease or diabetes, so it is important to seek medical advice if you are concerned.
While horizontal ridges in the nails can be a sign of malnutrition, it is important to note that they can also be caused by other factors, such as nail injury or Beau's lines. Therefore, it is always best to consult a healthcare professional for an accurate diagnosis and appropriate treatment plan.
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Horizontal ridges can be a sign of a serious nail injury
Horizontal ridges in your nails, also known as Beau's lines, can be a sign of a serious nail injury. Beau's lines are deep horizontal ridges that can stop nail growth until the underlying condition is treated. They can be caused by a single injury that affected only one finger or toe, or by an illness or trauma that happened more than once. Beau's lines can also be a sign of an underlying chronic condition that needs treatment, such as acute kidney disease. If you notice horizontal ridges in your nails, it's important to consult a healthcare provider or dermatologist to determine the underlying cause and address any possible health problems.
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Horizontal ridges, called Beau's lines, may suggest a serious condition
The thickness and number of Beau's lines can provide clues about the cause. For example, a single Beau's line on one nail may indicate an injury that affected only one finger or toe. Beau's lines on all of your nails can mean that an illness or stress caused them. Multiple Beau's lines on each nail may mean that an illness or trauma happened more than once.
If you notice Beau's lines, it is important to work with your healthcare provider to find out the underlying cause so you can address any possible health problems. Treating the underlying cause will allow new, smooth nails to grow again.
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Beau's lines can be a sign of acute kidney disease
Ridges in your nails are usually harmless but can sometimes be a sign of a health condition or a previous injury to your nail. 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 can be a sign of acute kidney disease.
Beau's lines are deep horizontal ridges that can be a symptom of serious conditions. They may stop nail growth until the underlying condition is treated. If you notice Beau's lines on your nails, it's important to consult a healthcare professional as they may be an indication of an underlying health issue.
Beau's lines can appear on all of your nails and may be caused by an illness or stress. Multiple Beau's lines on each nail could indicate that an illness or trauma has occurred more than once. Thicker Beau's lines may suggest that an illness or trauma lasted for a longer period of time.
While there is no specific treatment for Beau's lines, addressing the underlying cause can help prevent them from recurring once they have grown out. Your healthcare provider may recommend various treatments, such as applying creams or moisturisers for eczema or psoriasis, avoiding manicures and harsh nail products, and keeping blood sugar under control if you have diabetes.
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Frequently asked questions
Rigid lines in nails are usually harmless, but they can mean different things. Vertical lines are often a sign of ageing, while horizontal lines can point to issues like malnutrition, serious nail injury, or Beau's lines.
Beau's lines are horizontal ridges or dents in one or more of your fingernails or toenails. They're a sign that an illness, injury or skin condition interrupted your nail growth.
If you have Beau's lines, you should work with your healthcare provider to find out the underlying cause so you can address any possible health problems.
Vertical lines in nails are usually a typical sign of ageing. However, they can sometimes be a sign of health problems like vitamin deficiencies or diabetes.










































