
Fingernails can tell us a lot about our health. Changes in colour, shape, texture and thickness can indicate a number of health issues. For example, dents in your nails could be a sign of a disease that affects your entire body, while ridges that look like little horizontal or vertical waves on your fingernails could be a sign of koilonychia, an abnormal shape of the fingernail.
| Characteristics | Values |
|---|---|
| White spots | Leukonychia, a common condition caused by nail biting, nail picking, parakeratosis, trapped air, or injury to the base of the nail |
| White spots | Pseudoleukonychia, caused by outside organisms like fungi |
| Depressions | Nail pitting |
| Red or reddish-brown lines | Splinter hemorrhages, caused by burst capillaries under the skin beneath the nail |
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What You'll Learn
- Fingernail moons, or lunulas, are the rounded shadows at the base of your nails
- Pitting, or dents in your nails, could be a sign of a disease that affects your whole body
- Ridges, which look like little horizontal or vertical waves, can appear later in life
- Koilonychia is an abnormal shape of the fingernail, characterised by raised ridges, thinness, and an inward curve
- Nail abnormalities can refer to problems with the colour, shape, texture, or thickness of the nails

Fingernail moons, or lunulas, are the rounded shadows at the base of your nails
Nail abnormalities can take many forms, including changes in colour, shape, texture, or thickness. For example, koilonychia is a condition where the nail has raised ridges and is thin and curved inward. Another abnormality is pitting, which can look like dents in the nails made by an icepick. This could be a sign of a disease that affects the whole body, such as alopecia areata.
Vertical ridges on the nails generally appear later in life and run from the tip of the fingernail to the cuticle.
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Pitting, or dents in your nails, could be a sign of a disease that affects your whole body
Nail abnormalities can manifest in various ways, including problems with the colour, shape, texture, or thickness of the fingernails or toenails. For example, koilonychia is a condition characterised by an abnormal fingernail shape, with raised ridges, thinness, and a curved inward appearance.
In addition to pitting, other nail changes that may warrant a visit to the dermatologist include fingernail ridges, which can appear as horizontal or vertical waves on the nails. Vertical ridges typically occur later in life and run from the tip of the fingernail to the cuticle.
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Ridges, which look like little horizontal or vertical waves, can appear later in life
Ridges on your nails can be a sign of nail abnormalities. These ridges can appear as little horizontal or vertical waves. Vertical ridges generally appear later in life and run from the tip of your fingernail to the cuticle. However, raised ridges can also be a sign of koilonychia, a condition where the nail is thin and curved inward. If you are concerned about any changes to your nails, it is important to see a board-certified dermatologist for a diagnosis.
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Koilonychia is an abnormal shape of the fingernail, characterised by raised ridges, thinness, and an inward curve
Koilonychia can be a sign of more serious health issues, such as iron deficiency or conditions that affect the entire body. It is important to consult a board-certified dermatologist for a proper diagnosis if you notice any abnormalities in your fingernails, as they are specialists in diagnosing and treating nail-related health issues.
The presence of ridges, thinness, and an inward curve in Koilonychia can vary in severity and may be accompanied by other nail abnormalities, such as changes in colour, texture, or thickness. While these symptoms may not always indicate a serious health problem, it is crucial to seek professional advice to ensure proper care and treatment.
In summary, Koilonychia is a fingernail abnormality that goes beyond the typical ageing process and can be a warning sign of more significant health concerns. Consulting a dermatologist is essential for anyone experiencing these symptoms to receive an accurate diagnosis and appropriate treatment plan.
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Nail abnormalities can refer to problems with the colour, shape, texture, or thickness of the nails
Another nail abnormality is koilonychia, which is when the nail has raised ridges and is thin and curved inward. As people age, it is also common to develop vertical ridges that run from the tip of the fingernail to the cuticle.
Fingernail moons, or lunulas, are the rounded shadows at the base of your nails. They are the place where each nail begins to grow and are completely normal.
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Frequently asked questions
Fingernail moons are the rounded shadows at the base of your nails. They are also called lunulas, which is Latin for little moon.
Fingernail ridges are horizontal or vertical waves on your fingernails. Vertical ridges generally appear later in life and run from the tip of your fingernail to the cuticle.
If you have pits or dents in your nails, it could be a sign that you have a disease that affects your entire body. It is important to see a board-certified dermatologist for a diagnosis.
Koilonychia is an abnormal shape of the fingernail. The nail has raised ridges and is thin and curved inward.








































