Caleb Foster
The white part of the nail, known as the lunula, is the only visible part of the nail matrix, which is where the fingernails and toenails form. The lunula appears white due to a reflection of light at the point where the nail matrix and nail bed meet. White spots on nails, known as leukonychia, are generally harmless and often appear after an injury to the nails. They may take up to six to nine months to grow out of fingernails and 12 to 18 months for toenails.
| Characteristics | Values |
|---|---|
| White spots on nails | Harmless, often appear after an injury, may go away on their own or may need medication |
| White spots on nails treatment | May take 6-9 months for fingernails and 12-18 months for toenails to grow out |
| White nails (leukonychia) | Partial or complete discolouration of the nail plate, loss of general pink undertone |
| True leukonychia | Partial or whole nail plate damage caused by injury to the nail plate or matrix |
| Apparent leukonychia | Secondary to disease of the nail bed |
| Congenital leukonychia | Inherited recessively due to a mutation in the phospholipase C delta-1 gene |
| Total leukonychia | Can follow a more serious injury, often with detachment of the nail plate from the nail bed |
| Peripheral artery disease (PAD) | Causes less blood flow to legs and feet, affecting the nail matrix and slowing nail growth |
| Eczema | Severe cases can affect the nail matrix and temporarily interfere with nail growth |
| Psoriasis | Can cause white lines, pitting and crumbling of the nails |
| Lunula | The white crescent shape at the base of the nail, the only visible part of the nail matrix |
| Nail matrix | Where your fingernails and toenails form, creates new cells that become your nails |
| Nail bed | The skin beneath the nail plate, made of two types of tissues: the dermis and the epidermis |
| Nail growth | Fingernails grow at 3.5mm/month, toenails at 1.6mm/month, affected by age, sex, season, exercise, diet, hereditary factors |
| Nail abnormalities | Can be a sign of infection, injury or underlying condition, see a doctor if unsure |
| Fingernail or toenail discolouration | Can be caused by medications, bacterial infections, fungal infections, thyroid issues, lichen planus, etc. |
Explore related products
What You'll Learn
- Leukonychia, or white nails, is the partial or full discolouration of the nail plate
- White spots on nails are usually harmless and often appear after an injury
- The lunula is the white crescent shape at the base of your nail
- Peripheral artery disease causes less blood flow to your legs and feet, affecting nail growth
- A nail trephination procedure can drain blood trapped under the nail and help new nail growth
Leukonychia, or white nails, is the partial or full discolouration of the nail plate
There are two main types of leukonychia: true leukonychia and apparent leukonychia. True leukonychia is caused by partial or whole nail plate damage due to injury to the nail plate or matrix. It is characterised by discolouration resulting from abnormal nail plate keratinisation, with trapped air within the nail plate causing reflection and a lack of transparency. Apparent leukonychia is caused by changes in the nail bed that are visible through the nail plate. This type of leukonychia disappears with pressure application on the nail.
Partial leukonychia has three subtypes: punctate, striate, and longitudinal. Punctate leukonychia occurs after nail biting, manicuring, knocks, and bangs. Striate leukonychia, also known as Mees lines or transverse leukonychia, may follow damage to the nail matrix, and furrows and ridges may also appear. Longitudinal leukonychia is less common and features smaller 1mm white lines visible under the nail plate and perpendicular to the nail bed.
Total leukonychia refers to the whitening of the entire nail plate and can follow a more serious injury, often with detachment of the nail plate from the nail bed and an alteration to the nail contour. It may also be associated with systemic diseases or conditions such as heavy metal poisoning, cirrhosis of the liver, or chemotherapy.
While leukonychia is usually harmless, it is important to note that it can sometimes be a symptom of a more serious condition. If white spots appear on the nails alongside other severe symptoms, it is recommended to consult a healthcare provider for further evaluation and potential treatment options.
Strong, Long Nails: Achieving Your Dream Tips
You may want to see also
Explore related products
White spots on nails are usually harmless and often appear after an injury
The white part of the nail, known as the lunula, is the only visible part of the nail matrix, which is where your fingernails and toenails form. The nail matrix consists of two parts: the germinal matrix and the sterile matrix. The germinal matrix contributes to about 90% of nail growth, while the sterile matrix is responsible for the remaining 10% of cells that make up the nails.
White spots on nails, also known as leukonychia, are usually harmless and often appear after an injury to the nail plate or nail matrix. They may also be caused by allergies, fungal infections, mineral deficiencies, or heavy metal poisoning. In rare cases, they can be a symptom of a more serious condition. If you notice persistent white spots or other nail abnormalities, it is recommended to consult a doctor for further evaluation.
Leukonychia can manifest as partial or total nail plate discolouration. Partial leukonychia can be further classified into three subtypes: punctate leukonychia, striate leukonychia, and true leukonychia. Punctate leukonychia occurs after nail biting, manicuring, knocks, bangs, and tight footwear use. Striate leukonychia, also known as Mees lines or transverse leukonychia, may follow damage to the nail matrix, and can be accompanied by furrows and ridges. True leukonychia involves partial or whole nail plate damage caused by injury to the nail plate or matrix, resulting in keratin disruption and trapped air within the nail plate, leading to reflection and a lack of transparency.
Total leukonychia, or complete whitening of the nail plate, can follow a more severe injury, often with detachment of the nail plate from the nail bed and an alteration to the nail contour. It is important to note that total leukonychia usually affects all 20 nails. If you experience white spots on your nails due to injuries, they will typically grow out over time, although it may take up to six to nine months for fingernails and 12 to 18 months for toenails.
Nail Growth Stalled: What's the Reason?
You may want to see also
Explore related products
The lunula is the white crescent shape at the base of your nail
The nail matrix has two parts: the germinal matrix and the sterile matrix. The germinal matrix contributes about 90% of your nail growth, while the sterile matrix is responsible for the remaining 10% of cells that make up your nails. It is also more important for keeping your nail attached to the underlying skin.
The lunula can best be seen in the thumb and may not be visible in the little finger. Some people don't have visible lunulas, and that's normal, too.
The growing part of the nail is under the skin at the nail's proximal end under the epidermis, which is the only living part of a nail. The actual growth rate of nails is dependent on age, sex, season, exercise level, diet, and hereditary factors. Fingernails grow at about 3.5 mm per month, while toenails grow at about half that rate. It takes about four to six months for a fingernail to fully grow out and six to 18 months for a toenail.
Stronger, Longer Nails: A Guide to Nail Growth
You may want to see also
Explore related products
Peripheral artery disease causes less blood flow to your legs and feet, affecting nail growth
The white part of the nail, called the lunula, is the only visible part of the nail matrix, which is where your fingernails and toenails form. The nail matrix has two parts: the germinal matrix and the sterile matrix. About 90% of nail growth comes from the germinal matrix, while the remaining 10% comes from the sterile matrix, which is also responsible for keeping the nail attached to the skin.
Peripheral artery disease (PAD) is a condition that causes reduced blood flow to the legs and feet. This is due to the narrowing of the arteries in the arms and legs, which can be caused by the buildup of plaque, known as atherosclerosis. PAD can lead to slowed or stopped toenail growth as the tissues are not getting enough oxygen or nutrients to stimulate new nail growth. Other symptoms of PAD include changes in the thickness and colour of toenails, a cold feeling in the legs and feet, and the presence of sores that don't heal.
If left untreated, PAD can lead to more severe complications, such as gangrene, which can cause tissue death and require amputation. It is important to see a doctor if you are experiencing any symptoms of PAD, as early diagnosis and treatment are crucial. There are several tests that can be performed to diagnose PAD, including vascular testing and an ankle-brachial index (ABI) test.
Treatment options for PAD include vascular surgery, such as a bypass graft or angioplasty, which aim to restore blood flow and prevent further disease progression. Angioplasty involves using a catheter (a thin, flexible tube) to create a larger opening in the artery, and there are several types, including balloon angioplasty, atherectomy, laser angioplasty, and stent placement.
In summary, peripheral artery disease can affect nail growth in the legs and feet due to reduced blood flow, which impacts the oxygen and nutrient supply necessary for nail growth. Early diagnosis and treatment of PAD are crucial to prevent further complications and ensure the body is receiving adequate blood flow to function efficiently.
Manicure Prep: The Perfect Nail Length for a Manicure
You may want to see also
Explore related products
A nail trephination procedure can drain blood trapped under the nail and help new nail growth
The white part of the nail, called the lunula, is the only visible part of the nail matrix. The nail matrix is where your fingernails and toenails form. It has two parts: the germinal matrix and the sterile matrix. The germinal matrix is responsible for about 90% of your nail growth, while the sterile matrix makes up the remaining 10% of cells and is more important for keeping your nail attached to the underlying skin.
Injuries to the nail matrix can cause white spots on your nails. These spots are usually harmless and will eventually grow out. However, in rare cases, they can be a symptom of a more serious condition. If you experience severe symptoms along with white spots on your nails, it is important to consult a healthcare provider.
One type of injury that can occur to the nail is a subungual hematoma, which is when bleeding develops under the nail, causing pain and discoloration. This is often due to a direct blow or crush injury to the distal phalanx, such as getting your finger pinched in a doorway. As blood enters the space under the nail, it puts pressure on the nail bed, causing pain.
Nail trephination is a procedure that can be used to drain blood from a bruised nail (subungual hematoma). It involves making a small hole in the hard part of the nail (nail plate) to relieve the pressure and pain under the nail. It is important to perform this procedure within 24 to 48 hours of the injury, before the blood clots. Trephination is a quick, outpatient procedure that can be done in a variety of settings, including emergency rooms and urgent care clinics.
By relieving the pressure and draining the blood, nail trephination can help new nail growth. It also provides pain relief and prevents further complications. The procedure typically causes some discomfort, but it is quick and effective. After the procedure, it is important to keep the area clean and dry, and follow instructions for changing bandages.
Heal and Regrow Your Nails After a Break
You may want to see also
Frequently asked questions
White spots on nails, known as leukonychia, are usually harmless and often appear after an injury to the nails. They may go away on their own, but medication may be required in some cases.
The lunula is the white crescent shape at the base of your nail. It is the only visible part of your nail matrix. The lunula appears white due to the reflection of light where the nail matrix and nail bed meet.
The nail matrix is where your fingernails and toenails form. It has two parts: the germinal matrix and the sterile matrix. About 90% of nail growth comes from the germinal matrix, while the sterile matrix keeps the nail attached to the underlying skin.
Leukonychia can be classified as either true or apparent discolouration. True leukonychia is caused by damage to the nail plate or matrix, resulting in keratin disruption and trapped air within the nail plate. Apparent leukonychia is secondary to a disease of the nail bed.
Nail discolouration can be a sign of infection, injury, or an underlying condition. For example, green-black nails can be caused by bacterial overgrowth, while grey nails can be caused by certain medications. Fingernails that are half white and half brown may indicate kidney failure.
