Liam Carter
It's not uncommon to experience itchiness underneath the nails. This could be due to several factors, including skin conditions such as psoriasis, fungal infections, or paronychia, which is a bacterial or fungal skin infection around the nails. It could also be caused by habits such as nail-biting or picking, or even by certain manicures. In some cases, itchiness under the nails has been associated with anxiety. If you are experiencing persistent or severe itchiness, it is recommended to consult a dermatologist or your healthcare provider for a proper diagnosis and treatment.
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What You'll Learn
- Skin conditions like psoriasis or dermatitis can cause itchiness
- It could be a fungal infection, also known as onychomycosis
- Paronychia, a bacterial skin infection, is a common cause
- Overgrown hyponychium (skin under the nail) can lead to itchiness
- It may be related to anxiety, as reported by several individuals
Skin conditions like psoriasis or dermatitis can cause itchiness
Treatment options for nail psoriasis include topical corticosteroids, which can help manage skin thickening and treat nail ridges, thickening nails, and separating nails. Other options include calcipotriol, derived from vitamin D, and tazarotene, derived from vitamin A, which can treat pitting, separating nails, and discoloration. Additionally, laser therapy, such as pulsed dye laser (PDL), can be used to target blood vessels under the nails and reduce the severity of nail psoriasis.
To relieve symptoms and prevent infection, proper nail care is essential. The American Academy of Dermatology Association (AAD) recommends keeping fingernails and toenails trimmed and clean to prevent bacterial buildup. It is also advised to refrain from biting or picking at the nails or surrounding skin. When working with hands, wearing rubber or cotton gloves can protect the nails from injury and exposure to harmful bacteria and corrosive materials.
While less commonly discussed in the context of nail itchiness, dermatitis can also affect the skin under the fingernails. Dermatitis is a general term for skin inflammation and can be caused by various factors, including allergies, irritants, or genetic predispositions. Similar to psoriasis, dermatitis can cause itchy, inflamed skin and may lead to nail changes if the nails are affected. Treatment for dermatitis typically involves identifying and eliminating triggers, such as allergens or irritants, and using medications or therapies to reduce inflammation and alleviate symptoms.
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It could be a fungal infection, also known as onychomycosis
Onychomycosis typically results in nail discoloration, thickening, and separation from the nail bed. It can cause the nail to thicken and the skin tissue beneath it to thicken as well. The risk factors for developing onychomycosis include diabetes, human immunodeficiency virus (HIV) infection, distorted nails, a history of nail trauma, genetic predisposition, hyperhidrosis (excessive sweating), concurrent fungal infections, and psoriasis. Smoking and the use of occlusive footwear and shared bathing facilities are also associated with a higher risk of developing this condition.
The diagnosis of onychomycosis involves a physical examination, microscopic evaluation, and culture to identify the causative organism. Accurate diagnosis is crucial for successful treatment. Treatment options include systemic antifungals, topical therapies, laser therapy, photodynamic therapy, and periodic debridement. It is important to note that even with treatment, the recurrence rate of onychomycosis can be high, ranging from 10% to 50% due to reinfection or incomplete cure.
If you suspect that you have onychomycosis, it is advisable to consult a dermatologist, especially if there is bleeding, discoloration, or swelling. They can provide a proper diagnosis and recommend the most suitable treatment option for your specific case.
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Paronychia, a bacterial skin infection, is a common cause
Paronychia can affect both fingernails and toenails and can cause pain, swelling, and redness around the base or sides of the nail. In some cases, pus may be present under the cuticle. Acute paronychia appears suddenly and may not last long, usually occurring on the fingers. Chronic paronychia, on the other hand, lasts longer and may occur on the fingers or toes. It may not improve or may recur after treatment.
Healthcare providers typically treat paronychia with antibiotics to kill the infection and, in some cases, drain the pus. Soaking the infected area in warm water several times a day can also help to treat mild cases of paronychia. To prevent paronychia, it is important to take good care of your nails, avoid injuring your nails and fingertips, and keep your hands dry and free from chemicals.
Paronychia is a common condition, but it is essential to seek medical attention if you suspect you have it. Your doctor can diagnose paronychia through a simple physical exam and, in some cases, by sending a sample of fluid or pus to a laboratory for testing. Treatment options depend on the severity of the infection.
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Overgrown hyponychium (skin under the nail) can lead to itchiness
The hyponychium is the thick skin under your nail tip. It acts as a barrier to protect your nail unit from germs, bacteria, allergens, and pathogens. However, sometimes the hyponychium can become overgrown and thicker. This can be caused by several factors, including:
Gel manicures, acrylic nails, or nail biting
The most common cause of overgrown hyponychium is getting gel manicures, wearing acrylic nails, or biting your nails. These habits can lead to the hyponychium attaching to the underside of the nail as it grows, known as Pterygium Inversum Unguis (PIU). If PIU is caused by manicures, stopping these procedures will usually reverse the condition.
Nail psoriasis and fungal infections
Nail psoriasis and fungal infections can cause skin cells to accumulate under your fingernails, leading to overgrown hyponychium. Symptoms of a fungal nail infection include odour coming from the nail, separation of the nail from the nail bed, or nail crumbling. Antifungal medication can help treat this condition.
Autoimmune conditions
In some cases, PIU may be associated with autoimmune conditions such as lupus. Scientists don't fully understand PIU, but it can be present from birth or acquired later due to external factors.
Other factors
Other factors that can contribute to overgrown hyponychium include contact dermatitis, nail injuries, or underlying systemic conditions. Exposure to chemicals or allergic reactions may also play a role.
If you're experiencing discomfort or pain due to overgrown hyponychium, it's best to avoid cutting the skin and see a dermatologist for advice and treatment options.
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It may be related to anxiety, as reported by several individuals
It is important to note that itchiness under the fingernails may be related to anxiety, as reported by several individuals. While there are various potential causes of itchy nails, including fungal infections, nail psoriasis, and paronychia, some people have shared their experiences on online forums, such as Reddit, attributing their nail itching to anxiety.
In these forums, individuals have described their struggles with itchiness under the nails, specifically mentioning their belief that it is linked to their anxiety. They have expressed their frustration with the sensation and their attempts to find relief by cutting their nails extremely short or using objects to dig at their nails. Some have even resorted to more harmful methods, such as biting or cutting the skin with sharp objects, which can lead to bleeding and potential infections.
The itchiness seems to be localized to specific fingers, such as the left thumb, pointer finger, or ring finger, and it tends to be more noticeable in certain situations, like when wearing sandals or when restricted at a desk in class. Interestingly, some individuals have also experienced similar itching sensations in their teeth or toes.
While the exact mechanism linking anxiety and nail itching is unclear, it is possible that stress and anxiety may trigger or exacerbate certain physiological responses that lead to itching. It is important to note that itchiness under the nails can also be caused by various medical conditions, so seeking professional advice from a dermatologist or a doctor is recommended to rule out any underlying issues and receive appropriate treatment.
If you are experiencing severe or persistent itchiness under your fingernails, it is always best to consult a healthcare professional for a proper diagnosis and treatment plan. They can help determine whether anxiety or other factors are contributing to your symptoms and provide guidance on managing your nail health and overall well-being.
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Frequently asked questions
It could be due to an overgrowth of the hyponychium, the thick skin under your nail tip. This can be caused by gel manicures, acrylic nails, or nail biting. It can also be caused by nail psoriasis or fungal infections.
If the itchiness is due to an overgrowth of the hyponychium, it is best to avoid picking at the skin and to visit a dermatologist, especially if the area is bleeding, discoloured, or swollen. Treatment options include corticosteroids, antifungal medication, or simply avoiding certain manicures.
It could be due to paronychia, a skin infection around the fingernails or toenails. It is caused by an injury to the area, such as biting or picking at the nails, or from trimming or pushing back the cuticle. It can also be caused by moisture, allowing germs such as candida (a type of fungus) and bacteria to grow.
