Isla Bennett
Have you ever noticed that sometimes, your nails seem to have 'meat' or skin growing underneath them? This is known as hyponychium overgrowth and can be caused by various factors, including nail length, manicure habits, and even underlying health conditions. While it may be harmless in some cases, it can also indicate more serious issues. In this article, we will explore the causes of hyponychium overgrowth, the potential concerns it may signify, and ways to manage and treat this condition. Understanding the reasons behind this phenomenon will help you maintain healthy nails and overall well-being.
| Characteristics | Values |
|---|---|
| Name of the skin under nails | Hyponychium |
| Location | 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 | Gel manicures, long nails, contact dermatitis, nail injury, nail biting, nail psoriasis, fungal infections, lupus, wearing acrylic nails |
| Overgrowth treatments | Cuticle oil, cuticle remover, antifungal medication, builder gel, consulting a dermatologist |
| Bacteria | Artificial nails can harbor pathogens, gram-negative bacilli (pseudomonas), and yeast |
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What You'll Learn
Pterygium inversum unguis (PIU)
PIU can be present from birth (congenital) or acquired later in life. The acquired form is commonly associated with autoimmune conditions such as lupus, stroke, neurofibromatosis, leprosy, or the use of nail fortifiers. It may also be triggered by external factors such as nail psoriasis and fungal infections. PIU can cause pain when manipulating small objects, typing, or manicuring the nails, and may lead to bleeding or pain after nail clipping.
The management of PIU is not well-defined, and various treatments such as topical steroids, keratolytics, and electrocautery-assisted surgical excision have been reported as ineffective. The best course of action is to treat the underlying cause of PIU. Patients with PIU should be evaluated for associated rheumatologic diseases and require long-term follow-up examinations to detect the development of connective tissue diseases.
PIU predominantly affects women aged 20-70, although it has also been reported in a 22-year-old man with all ten fingernails affected. The condition can cause discomfort and make nail trimming difficult due to pain and easy bleeding, and the risk of infection. While there is no widely accepted treatment for PIU, some individuals have found relief by using cuticle oil to soften the thickened skin and gently pushing it back after showering.
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Hyponychium overgrowth causes
The hyponychium is the skin just under the free edge of the nail, located beyond the distal end of the nail bed, near the fingertip. It acts as a barrier to protect the nail from germs and debris. However, the hyponychium can sometimes overgrow, leading to thickened skin under the nail. This condition is known as subungual hyperkeratosis.
There are several possible causes of hyponychium overgrowth. One common reason is Pterygium Inversum Unguis (PIU), where the hyponychium attaches to the underside of the nail as it grows. PIU can be present from birth or acquired later in life. The acquired form is often associated with autoimmune conditions such as lupus but can also be triggered by external factors.
Another cause of hyponychium overgrowth is nail psoriasis, a skin condition where skin cells grow rapidly and affect the nail. This can lead to scaling, buildup, and nail separation from the nail bed (onycholysis). Fungal infections can also contribute to hyponychium overgrowth, causing thickening of the nail and underlying skin.
Certain nail habits can also lead to hyponychium overgrowth. Wearing long nails with gel or acrylic enhancements for extended periods can restrict the natural flexing of the nail, causing the hyponychium to retain its grip on the nail as it grows. Additionally, biting your nails and picking at the hyponychium can lead to overgrowth and increase the risk of infection.
If you are experiencing hyponychium overgrowth, it is recommended to consult a dermatologist for evaluation and treatment. At-home remedies, such as cuticle oil, can help soften the thickened skin and reduce the growth.
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Melanoma under nails
Melanoma under the nails, also known as subungual melanoma, is a rare type of skin cancer that occurs under the nails. It is the deadliest form of skin cancer and can develop under and around the fingernails and toenails. While anyone can develop melanoma on their nails, it is more common in older individuals and people with skin of colour. A personal or family history of melanoma or previous nail trauma may also be risk factors.
The early signs of subungual melanoma may not always be noticeable, which makes it challenging to detect and treat early. However, when found early, melanoma under the nails is highly treatable. It is important to regularly check your nails for any changes, including new dark bands, streaks, or discolouration that may resemble bruising. Additionally, look out for symptoms such as nail lifting or splitting, a bump or nodule under the nails, and nail separation from the nail bed.
If you notice any of these signs, it is crucial to make an appointment with a board-certified dermatologist, who will examine the nail cells to determine if they are cancerous and consistent with melanoma. A dermatoscopy or full-thickness biopsy may be performed to confirm the diagnosis. Treatment options for subungual melanoma include surgical removal of the affected area, radiation, chemotherapy, immunotherapy, and targeted therapy.
It is important to be vigilant and seek medical advice if you notice any unusual changes to your nails, as early detection and treatment of melanoma are crucial for a successful outcome.
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Fingernail lifting
Onycholysis, or fingernail lifting, is a condition where the nail separates from the nail bed. It can affect a single nail or multiple fingernails and/or toenails. The distal part of the nail is most commonly affected, with the free edge lifting; sometimes, the nail may detach laterally or proximally. The detached nail is usually white and opaque compared to the normal transparent nail that appears pink. Lateral or proximal onycholysis is often a yellow-pink colour rather than white. The nail surface may be normal, or it may be pitted, indented, or crumbly.
There are several causes of onycholysis. The most common cause is trauma, even slight trauma that occurs repetitively. For example, the daily tapping of long fingernails on a keyboard or counter can cause onycholysis. Manicure tools pushed beneath the nail to clear dirt or smooth the nail can also cause trauma. Too much moisture can also cause the problem. Nails expand after they are exposed to moisture and then shrink while drying, a cycle that can make them brittle. Keeping nails dry will also help prevent fungal infections.
Fungal infections are another common cause of onycholysis. If a bacterial or fungal infection is present, a medical professional can prescribe appropriate treatment. Some medical conditions can also cause onycholysis, generally by changing the nail's shape or the contour of the soft tissue bed beneath it. In these cases, the nail cannot attach smoothly to the nail bed. Certain skin conditions, including allergic reactions and psoriasis, are common causes of onycholysis. After exposure to some medicines, the nail can react to sun exposure by lifting away from its bed.
There are some preventive measures that can be taken to make onycholysis less likely to occur. Cutting nails to a comfortable length will make them less likely to endure repeated trauma from tapping in everyday use. Wearing rubber gloves can help avoid repetitive immersion in water and keep nails dry to prevent fungal infections. Avoiding frequent exposure to harsh chemicals, such as nail polish remover, is also recommended.
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Infection around the fingernail
The hyponychium is the skin just under the free edge of the nail, located beyond the distal end of the nail bed, near the fingertip. It acts as a barrier to protect the nail from germs and debris and contains white blood cells to prevent infection. However, the hyponychium can sometimes overgrow, leading to thickened skin under the nail. This condition is known as Pterygium Inversum Unguis (PIU) and can cause discomfort and increase the risk of infection.
Artificial nails, such as gel or acrylic manicures, can also contribute to nail infections. The area between the organic nail and the artificial nail provides an ideal environment for bacteria and pathogens to thrive. This can lead to the growth of gram-negative bacilli (pseudomonas) and yeast, increasing the risk of infection.
Certain underlying conditions can also make individuals more susceptible to nail infections. For example, those with psoriasis may develop nail involvement, known as nail psoriasis or subungual hyperkeratosis, which can cause skin overgrowth under the nail. Additionally, individuals with lupus are at risk of acquiring PIU, which can lead to thickened skin and an increased risk of infection.
To prevent and manage nail infections, it is essential to maintain proper nail care and hygiene practices. This includes regularly cleaning under the nails, especially if they are longer than average. In cases of suspected infection, it is recommended to consult a dermatologist for examination and appropriate treatment.
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Frequently asked questions
It is unlikely that meat is growing under your nails. However, there are several reasons why skin can grow under your nails, including injury from cleaning under your nails with a sharp object, nail psoriasis, fungal infections, and more. If you are concerned about the appearance of your nails, consult a dermatologist.
The hyponychium is the tissue under the free edge of the nail. It acts as a barrier from germs and debris and contains white blood cells to help prevent infection.
The hyponychium can overgrow due to several factors, including wearing long nails with gel or acrylics, contact dermatitis, nail injury, nail psoriasis, and fungal infections. It can also be genetic or present from birth.
To treat overgrown hyponychium, you can try using a cuticle remover or cuticle oil to soften the thickened skin. Antifungal medication may also help if you have a fungal infection. If you are unsure about the cause, consult a dermatologist.
