Ava Monroe
Have you ever noticed that the skin under your nails seems to be growing out? This is known as hyponychium, and it can be uncomfortable and even painful. The hyponychium is the tissue under the free edge of the nail, and it usually functions as a barrier to protect your nail from germs, debris, and infection. However, when it overgrows, it can become a problem, causing discomfort and affecting the appearance of your nails. There are several possible causes for hyponychium overgrowth, including genetic factors, wearing long nails or gel manicures for extended periods, and nail injuries. In some cases, it may be associated with autoimmune conditions or skin conditions such as psoriasis. While it may be tempting to address the issue at home, it is important to consult a dermatologist to determine the underlying cause and receive appropriate treatment.
| Characteristics | Values |
|---|---|
| Name of the skin under the nails | Hyponychium |
| Location | Just under the free edge of the nail, beyond the distal end of the nail bed, near the fingertip |
| Functions | Acts as a barrier from germs and debris, contains white blood cells to prevent infection |
| Overgrowth causes | Genetic, wearing long nails with gel or acrylics, contact dermatitis, nail injury, fungal infection, psoriasis, PIU (present from birth or acquired later) |
| Overgrowth symptoms | Pain during nail trimming, undesirable appearance, increased risk of infection |
| Overgrowth treatment | Antifungal medication, cuticle oil, consulting a dermatologist |
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What You'll Learn
The hyponychium
In some cases, the hyponychium may thicken or become discolored, indicating a potential infection or other issues. Pterygium inversum unguis (PIU) is an uncommon condition where the hyponychium attaches to the underside of the nail as it grows, leading to skin overgrowth under the fingernail. Other possible causes of hyponychium thickening include nail psoriasis, fungal infections, trauma, exposure to chemicals, underlying systemic conditions, or allergic reactions.
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Pterygium inversum unguis (PIU)
PIU is often asymptomatic, but for those who do experience symptoms, the most commonly reported ones are bleeding or pain after clipping the affected nails. The condition can make trimming nails painful and increase the risk of infection. As of 2014, only 37 cases of PIU have been reported in the literature.
The best way to address PIU is unclear, and many treatments, such as topical steroids, keratolytics, and electrocautery-assisted surgical excision, have been shown to be ineffective. Treating the underlying cause of PIU is the recommended course of action. Patients with PIU need to be evaluated to rule out associated rheumatologic diseases and require long-term follow-up examinations to detect the development of connective tissue diseases such as scleroderma.
PIU is most commonly found in women aged 20-70, although a rare case of a 22-year-old man with PIU on all 10 fingernails has been reported. The man experienced pain, discomfort, and easy bleeding when clipping his nails but had no other symptoms or family history of the condition.
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Gel manicures
The skin under your nails is called the hyponychium. It is the thick skin under your nail tip that acts as a barrier to protect your nail from harmful substances, germs, and debris. However, it can become a problem if it overgrows, which can be painful and may increase the risk of infection.
If you are experiencing hyponychium overgrowth due to gel manicures, there are a few things you can do. Firstly, it is recommended to take a break from gel manicures and switch to regular manicures or BIAB nails, which add a protective layer over the nail plate. During this break, you can use a cuticle remover or oil to gently push back the hyponychium and prevent further growth. If you are concerned about overgrowth, it is best to consult a dermatologist, as they specialise in skin and nail conditions.
If you wish to continue with gel manicures, there are some precautions you can take. You can inform your nail technician ahead of time so they can work carefully around the hyponychium area. Some people prefer to cut their nails before going to the salon to avoid having the technician cut the skin, as this can cause sensitivity and pain. It is important not to cut the hyponychium, as this can introduce an infection. Instead, you can soften the skin at home using oil and gently push it back with a cuticle pusher.
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Genetic factors
The hyponychium, the tissue under the free edge of the nail, can sometimes overgrow. This can be caused by several factors, including genetic factors.
The hyponychium is the skin just under the free edge of the nail. It acts as a barrier to protect the nail from germs and debris. While it is usually located near the fingertip, in some people, it can attach to the underside of the nail as it grows, causing an overgrowth of skin under the nail. This condition is known as Pterygium inversum unguis (PIU). PIU can be present from birth due to genetic factors or acquired later in life. While scientists do not fully understand PIU, they have identified that it runs in families, suggesting a genetic component to the disorder.
In addition to PIU, other genetic factors can also contribute to skin overgrowth under the nails. For example, individuals with a family history of thick or overgrown cuticles may be more prone to experiencing similar issues. This suggests that the thickness and growth patterns of the hyponychium can be influenced by genetic predispositions.
Furthermore, certain genetic skin conditions can also lead to skin overgrowth under the nails. One such condition is psoriasis, which causes skin cells to grow rapidly and affect the nails. Nail psoriasis can result in the overgrowth of skin cells in the hyponychium and nail bed, leading to scaling and buildup. This condition is known as subungual hyperkeratosis and can cause the nail plate to separate from the nail bed, a condition called onycholysis.
It is important to note that while genetics plays a role in skin overgrowth under the nails, it is often influenced by a combination of genetic and environmental factors. For example, individuals with a genetic predisposition to PIU may only exhibit the condition when triggered by external factors such as autoimmune conditions or nail injuries.
Consulting with a dermatologist is advised to accurately determine the cause of skin overgrowth under the nails and to discuss appropriate treatment options.
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Autoimmune conditions
Skin growing under the nails, known as hyponychium, can be caused by several factors, including autoimmune conditions. One such condition is nail psoriasis, an autoimmune disease that affects the fingernails and toenails. It is characterised by an overreaction of the immune system, leading to rapid growth of new skin cells. This results in skin cell accumulation under the nail, known as subungual hyperkeratosis. People with hyperkeratosis may observe a white, chalky substance under their nails.
Nail psoriasis causes various symptoms, including discoloration, pitting, and changes in nail structure. Discolouration can manifest as yellow, red, pink, or brown patches under the nails, known as salmon patches or oil drop spots. Pitting refers to dents or pits in the nails, ranging in size from 0.4 to 2 millimetres. Additionally, nail psoriasis can lead to the development of horizontal grooves across the nails, known as Beau's lines, and thinning of the nails, making them prone to crumbling.
Another autoimmune condition that can cause skin growth under the nails is lupus. Lupus is associated with Pterygium inversum unguis (PIU), a condition where the hyponychium attaches to the underside of the nail during growth. PIU can be present from birth or acquired later, often triggered by external factors. While scientists don't fully understand PIU, it is linked to lupus and can lead to skin overgrowth under the fingernails.
It is important to consult a dermatologist or healthcare provider to accurately diagnose and treat any nail-related concerns, especially when suspected to be related to autoimmune conditions.
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Frequently asked questions
The hyponychium, the skin just under the free edge of your nail, can sometimes overgrow and become thicker. This can be caused by wearing your nails long with gel or acrylic nails for too long, contact dermatitis, or some sort of nail injury.
If you are unsure what is causing the skin growth under your nails, it is recommended to visit a dermatologist. Treatment options include antifungal medication and cuticle oil to soften the thickened skin.
The hyponychium is the tissue under the free edge of the nail that seals the nail plate to the tip of the finger. It acts as a barrier from germs and debris, stopping external substances from getting under your nails.
