Isla Bennett
The half-moon shape at the base of your fingernail is known as a lunula. Lunulae are part of your nail matrix, which refers to the tissue just beneath your nail. They cover the bottom of your nail, just above your cuticle.
| Characteristics | Values |
|---|---|
| Name | Lunula |
| Description | Small, white, half-moon shapes found at the base of the nail |
| Cause for concern | Usually not, but if you notice any changes, tell your doctor |
| Cause of changes | May be hidden underneath the cuticle or skin at the base of the finger, especially on nail biters or those with more cuticle growth |
| Colour | May turn white, sometimes creating a nail that's half-brown and half-white, which may be a sign of renal disease. If it turns red, it may be a signal of heart failure |
Explore related products
What You'll Learn
- The half-moon shape at the base of your fingernail is known as a lunula
- Lunulae cover the bottom of your nail, just above your cuticle
- You may or may not see a lunula at the bottom of each of your fingernails
- Small or missing lunulae usually aren't a cause for concern
- Healthy lunulae are usually a whitish colour and take up a small portion of the bottom of your nail
The half-moon shape at the base of your fingernail is known as a lunula
Not everyone has a visible lunula. If you don't, it simply means that the matrix is sitting lower on that nail. The more prominent the lunula is, the higher the matrix is usually sitting. Small or missing lunulae usually aren't a cause for concern. They're often just hidden underneath the cuticle or skin at the base of the finger, especially on nail biters or those with more cuticle growth. However, if you notice any changes to your lunula, it's important to tell your doctor.
In some cases, changes to the lunula can indicate health issues. For example, if the portion of your nail containing the lunula turns white, it may be a sign of renal disease. People who experience chronic renal failure may produce more melanin, which can cause the nail bed to turn brown. If your lunula turns red, it may be a signal of heart failure.
Nail Discoloration: White Blotches and Nutritional Deficiency
You may want to see also
Explore related products
Lunulae cover the bottom of your nail, just above your cuticle
The half-moon shape at the base of your fingernail is known as a lunula. Lunulae cover the bottom of your nail, just above your cuticle. They are part of your nail matrix, which refers to the tissue just beneath your nail. The matrix contains nerves, lymph and blood vessels, and produces the cells that become the hardened nail plate.
Lunulae are usually small, white, half-moon shapes. However, they can vary in size and prominence, depending on the position of the matrix. If the lunula is more prominent, this means the matrix is sitting higher on the nail. If it is less prominent, the matrix is sitting lower. Lunulae are usually hidden underneath the cuticle or skin at the base of the finger, especially on nail biters or those with more cuticle growth.
In most cases, small or missing lunulae are not a cause for concern. However, if you notice any changes to the lunula, it is important to tell your doctor. Sometimes, the lunula can turn white, creating a half-brown and half-white nail, which may be a sign of renal disease. If the lunula turns red, this could be a signal of heart failure.
Brown Nail Lines: Cancer Warning or Myth?
You may want to see also
Explore related products
You may or may not see a lunula at the bottom of each of your fingernails
If you don't have a visible lunula, it simply means that the matrix is sitting lower on that nail. The more prominent it is, the higher the matrix is usually sitting. Small or missing lunulae usually aren't a cause for concern. They're usually just hidden underneath the cuticle or skin at the base of your finger, especially on nail biters or those with more cuticle growth. However, if you notice any changes to your lunula, it's important to tell your doctor.
White Nails: What They Mean and Why They Happen
You may want to see also
Explore related products
Small or missing lunulae usually aren't a cause for concern
The half-moon shape at the base of your fingernail is known as a lunula. Lunulae cover the bottom of your nail, just above your cuticle. They are part of your nail matrix, which refers to the tissue just beneath your nail. The matrix contains nerves, lymph and blood vessels, and produces the cells that become the hardened nail plate.
However, if you notice any changes to the lunula, it's important to tell your doctor. In some cases, missing lunulae may be a result of trauma or a sign of chronic renal failure, which can cause the nail bed to turn brown. If your lunula turns red, it may be a signal of heart failure.
What Thumb Nail Dents Could Be Telling You
You may want to see also
Explore related products
Healthy lunulae are usually a whitish colour and take up a small portion of the bottom of your nail
The half-moon shape at the base of your fingernail is known as a lunula. Lunulae are part of your nail matrix, which refers to the tissue just beneath your nail. Healthy lunulae are usually a whitish colour and take up a small portion of the bottom of your nail, just above your cuticle. The size and shape of your nail beds are largely determined by genetics, but the prominence of your lunula can also be influenced by your cuticle-picking habits. If you pick your cuticles, the lunula may be more prominent, as the cuticle has been compromised and more of the lunula and nail plate are on show.
In most cases, seeing this shape at the base of your fingernail isn't a cause for concern. However, if you notice any changes to it, it's important to tell your doctor. If your lunula turns red, it may be a signal of heart failure, and if it turns half-brown and half-white, it could be a sign of renal disease.
Understanding the 7-Panel Nail Drug Test: What Employers Need to Know
You may want to see also
Frequently asked questions
The half-moon shape at the base of your fingernail is known as a lunula.
Lunulae are part of your nail matrix. The matrix refers to the tissue just beneath your nail. It contains nerves, lymph, and blood vessels.
Small or missing lunulae usually aren't a cause for concern. They're usually just hidden underneath the cuticle or skin at the base of your finger. However, if you notice any changes to it, it's important to tell your doctor.
The portion of your nail containing the lunula may turn white, sometimes creating a nail that's half-brown and half-white. This is sometimes called half-and-half nails and may be a sign of renal disease.
If your lunula turns red, it may be a signal of heart failure.
