Isla Bennett
The skin under your nails is called the hyponychium, and it's located at the distal end of your nail bed, near your fingertip. It acts as a barrier to protect your nails from harmful substances and infections. Sometimes, the hyponychium can overgrow and become thicker, causing discomfort and affecting the appearance of your nails. This condition is called Pterygium Inversum Unguis (PIU) and can be caused by various factors, including genetic predisposition, long artificial nails, contact dermatitis, or nail injuries. Treatment options include using cuticle oil or cuticle remover to soften and gently push back the overgrown skin.
| Characteristics | Values |
|---|---|
| Name | Hyponychium |
| Location | Under the free edge of the nail, near the fingertip |
| Function | Seals the nail plate to the tip of the finger, acts as a barrier from germs and debris |
| Overgrowth Causes | Genetic, wearing long nails with gel or acrylics, contact dermatitis, nail injury, psoriasis, lupus |
| Treatment | Cuticle remover, Cuticle oil, builder gel |
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What You'll Learn
The hyponychium is a protective barrier
The hyponychium forms a tight barrier that prevents bacteria, pathogens, and other foreign substances like dirt and debris from entering the sensitive areas of the nail unit. It is an early warning system with numerous nerve endings that can detect if its protective seal is compromised. The skin in this region contains white blood cells to help prevent infection.
The hyponychium is composed of a thick layer of keratinized cells, which gives it strength and flexibility, effectively protecting the nail bed. Its keratin-rich composition makes it a sturdy structure that can endure daily wear and tear.
Good nail hygiene is essential for maintaining the integrity of the hyponychium. Regular cleaning of the nail area and keeping it free from dirt and debris is crucial. It is also important to avoid activities that may cause trauma to the hyponychium, such as nail biting, to ensure its ability to function effectively as a protective barrier.
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Trimming nails can be painful
Trimming nails is an important part of maintaining good hygiene. It helps keep nails clean and prevents them from snagging and breaking. However, for some people, trimming nails can be a painful experience, especially if they have an overgrown hyponychium.
The hyponychium is the tissue located just under the free edge of the nail near the fingertip. It acts as a protective barrier, sealing the nail plate to the tip of the finger and preventing germs and debris from getting under the nails. However, in some cases, the hyponychium can become overgrown and thicken, causing discomfort when trimming nails. This overgrowth can occur due to various reasons, including genetic factors, wearing long nails or gel/acrylic nails for extended periods, contact dermatitis, or nail injuries.
When trimming nails, it is essential to use the proper tools, such as nail clippers or manicure scissors, and to disinfect these tools regularly to prevent infections. Nails should be cut straight across, and a nail file or emery board should be used to smooth and round the corners gently. It is important not to cut too deeply, as this can expose the sensitive skin beneath the nail and increase the risk of infection.
To make nail trimming less painful, it is recommended to soften the nails by soaking them in lukewarm water before cutting. Additionally, cuticle oil can be applied to help soften thickened skin around the nails. If the pain persists or the overgrown hyponychium becomes a recurring issue, it is advisable to consult a dermatologist, as they specialize in treating nail conditions and can provide personalized advice and treatment options.
While trimming nails is crucial for hygiene, it is important to be cautious and gentle to avoid causing pain or damage to the nails and the surrounding skin.
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Gel manicures can cause overgrowth
The hyponychium is the tissue under the free edge of the nail, near the fingertip. It acts as a barrier to protect the nail from harmful substances and germs. However, it can become problematic when overgrown, causing discomfort and increasing the risk of infection.
Gel manicures have been identified as a potential cause of hyponychium overgrowth. The cumulative UV exposure from the curing process of gel manicures has been linked to increased UV-induced skin damage and an elevated risk of skin cancer. This is because the curing process involves exposure to ultraviolet A (UVA) rays, which cause skin ageing and DNA damage that may lead to cancer.
Additionally, the chemicals in gel nail polish can also be detrimental. Gel polish contains acrylate and methacrylate, which are known allergens that can cause contact dermatitis and, less commonly, hives. The removal process can also be damaging to the nails if not done carefully.
To prevent hyponychium overgrowth caused by gel manicures, it is recommended to limit gel manicures to special occasions and give your nails breaks in between. During gel manicures, you can also apply broad-spectrum, water-resistant sunscreen with an SPF of 30 or higher to your hands to protect your skin from UV radiation.
If you experience hyponychium overgrowth, you can try using a cuticle remover or cuticle oil to soften the thickened skin and gently push it back.
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PIU is an uncommon condition
The skin under the nails growing outwards is known as Pterygium inversum unguis (PIU). It is an uncommon condition but a common cause of skin overgrowth under the fingernail. The hyponychium, located near the fingertip, is the tissue under the free edge of the nail. It acts as a protective barrier, sealing the nail plate to the tip of the finger and preventing germs and debris from getting under the nails.
However, in some cases, the hyponychium can overgrow and become thicker, resulting in PIU. This condition can make nail trimming uncomfortable and may not be aesthetically pleasing to some. While scientists do not fully understand PIU, they know that it can be present from birth or acquired later. The acquired form is often associated with autoimmune conditions such as lupus, but it can also be triggered by external factors. For instance, psoriasis, a skin condition characterised by rapid skin cell growth, can affect the hyponychium and nail bed, leading to scaling and buildup. This overgrowth is termed subungual hyperkeratosis.
There are several potential causes of hyponychium overgrowth. One of the most common reasons is the attachment of the hyponychium to the underside of the nail during growth. Additionally, it may be genetic for some individuals, while others may develop it from wearing long nails with gel or acrylic enhancements for extended periods. Contact dermatitis or nail injuries can also contribute to this condition.
To address hyponychium overgrowth, individuals can consider using a builder gel or BIAB nails, which add a layer of protection on top of the nail plate, potentially reducing the growth. Antifungal medication and cuticle oil are other possible treatments, although it is always advisable to consult a dermatologist for a thorough examination and specialised treatment options.
While PIU is uncommon, understanding its causes and treatment options can help manage the condition effectively and maintain nail health.
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Treatment options include cuticle oil
Skin growing under the nails is known as Pterygium inversum unguis (PIU) or hyponychium. It is an uncommon condition, but it can be present from birth or acquired later. The acquired form is most commonly associated with autoimmune conditions such as lupus, but it can also be triggered by external factors such as psoriasis.
There are various cuticle oils available, including brush-on, roll-on, and serums. The application method depends on the type of cuticle oil you choose. For example, if you opt for a rollerball, you can easily stash it in your bag, whereas a traditional dropper formula can work nicely into your nail care routine at home.
After applying the cuticle oil, let it sit on your nails for a few minutes to allow it to absorb fully into the cuticles. You can then use a cuticle pusher or a wooden orange stick to gently push back the softened cuticles. Be careful not to apply too much pressure or cause any discomfort. Finally, wipe off any excess oil with a clean tissue or cotton pad to prevent a greasy or slippery feeling.
In addition to cuticle oil, you can also use natural oils such as olive oil, coconut oil, or vitamin E oil. Simply apply a small amount to your cuticles and massage gently. Moisturizing hand cream or lotion can also help keep your cuticles hydrated. However, these alternatives may not have the same specialized ingredients and benefits as dedicated cuticle oils.
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Frequently asked questions
The skin under your nails is called the hyponychium. Sometimes, the hyponychium can overgrow and thicken, causing the skin under your nails to grow outwards.
There are several reasons why the hyponychium may overgrow. The most common reason is because the hyponychium attaches to the underside of the nail as it grows. It can also be genetic, or caused by wearing your nails long with gel or acrylic nails for too long, contact dermatitis, or a nail injury.
To reduce the growth, try using a cuticle remover or a cuticle oil and gently pushing the hyponychium back after you shower. If you can't live without your gel manicures, you can switch to builder gel, which adds a layer onto the nail and is considered safer than regular gel manicures.
The hyponychium acts as a barrier from germs and debris, sealing the nail plate to the tip of the finger and stopping external substances from getting under your nails.
If you're unsure what's causing skin growth under your nails, visit a dermatologist. They can determine the best treatment by examining your nails and other symptoms.
