Noah Sinclair
Fingernail infections, also known as paronychia, are common and can occur due to various reasons. The symptoms of a fingernail infection include redness, swelling, and tenderness around the nail. The affected area is usually warm and painful to touch. In some cases, there may be pus-filled blisters, and the nail may become detached, abnormally shaped, or discoloured. If left untreated, the infection can spread deeper into the finger, leading to potential nail damage and, in severe cases, may require the finger to be amputated. It is important to seek medical attention if a fingernail infection is suspected, as prompt diagnosis and treatment can prevent further complications.
| Characteristics | Values |
|---|---|
| Common Causes | Bacteria, fungus, virus, certain medications, yeast-like organism Candida, trauma to the nail fold, exposure to moisture |
| Symptoms | Pain, swelling and tenderness around the nail, redness, warmth to the touch, pus build-up under the skin, nail becomes thick, yellow, dry, brittle, or abnormally shaped, nail ridging |
| Treatment | Antibiotics, antifungal medication, antifungal nail paint, surgical drainage, warm soaks with soap and water |
| Prevention | Avoid biting or picking nails, use rubber or plastic gloves, maintain good hygiene, keep nails trimmed |
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What You'll Learn
- Paronychia: a bacterial or fungal infection causing redness and swelling around the nail bed
- Onycholysis: a nail condition where the nail separates from the nail bed, possibly resulting in discolouration
- Proximal subungual onychomycosis: a rare yeast infection that affects the nails, typically the fingernails
- Distal or lateral subungual onychomycosis: a common nail fungus that causes yellow nail discolouration
- Nail psoriasis: a condition that causes nail denting or crumbling
Paronychia: a bacterial or fungal infection causing redness and swelling around the nail bed
Paronychia is a bacterial or fungal infection that causes redness and swelling around the nail bed. It is a common condition that affects the skin at the base (cuticle) or up the sides of the nail. The infection can develop when bacteria enter broken skin near the cuticle and nail fold, causing an infection. The cuticle is the skin at the base of the nail, and the nail fold is where the skin and nail come together.
There are two types of paronychia: acute and chronic. Acute paronychia occurs when there is an infection due to direct or indirect trauma to the cuticle or nail fold. It usually occurs on fingers and comes on suddenly, sometimes developing over several hours or days. Symptoms include pain, swelling, and redness around the base or sides of the nail, with skin that is red and warm to the touch. Pus-filled blisters may also be present, especially with a bacterial infection.
Chronic paronychia, on the other hand, lasts longer and may occur on fingers or toes. It usually develops more slowly than acute paronychia and can last six weeks or longer. It often starts on one nail and spreads to others. Several fingers or toes can be infected at once. Chronic paronychia is often the result of allergens or irritants, such as exposure to detergents and other chemicals, and is more common in people with underlying skin conditions or those with weak immune systems.
Treatment for paronychia depends on the severity of the infection. Acute cases can be managed by soaking the infected nail in warm water 2-4 times a day to reduce pain and swelling. Antibiotics may also be prescribed to kill the infection. For severe cases, a medical professional may need to cut and drain the sore with a sharp instrument, and in some cases, part of the nail may need to be removed. Chronic paronychia can be treated by avoiding allergens and irritants, and in the case of a fungal infection, antifungal medication may be prescribed.
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Onycholysis: a nail condition where the nail separates from the nail bed, possibly resulting in discolouration
Onycholysis is a common nail disorder where the nail separates from the nail bed, typically resulting in a well-defined area of white opaque nail. The condition can affect both sexes, all ages and races, although it is most frequently observed in adult women. It can affect a single nail or multiple fingernails and/or toenails.
The main symptom of onycholysis is the separation of the nail from the nail bed, which can occur painlessly and slowly over time. It can be caused by an underlying health condition, injury, nail fungus, or psoriasis. The affected nail may change colour to yellow, green, purple, white, or grey. This discolouration can be a sign of a secondary infection under the nail, most commonly with Candida albicans and Pseudomonas aeruginosa.
The detached portion of the nail will not reattach, and treatment aims for new nail growth to remain attached to the nail bed. To achieve this, it is recommended to keep the nails short with frequent trimming, avoiding activities that traumatise the nail and nail bed, and steering clear of potential irritants such as nail enamel, enamel remover, solvents, and detergents. Antimicrobial soaks, such as dilute vinegar, can be used to minimise the risk of secondary infection.
The underlying cause of onycholysis should be identified and addressed. This may involve ceasing or changing medications, treating a nail infection, or managing an associated systemic condition or dermatosis. In some cases, onycholysis may indicate a serious yeast infection or thyroid disease.
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Proximal subungual onychomycosis: a rare yeast infection that affects the nails, typically the fingernails
Fingernail infections can take on various forms and can be caused by a variety of factors, including bacteria, fungus, and yeast. One such infection is proximal subungual onychomycosis, a rare yeast infection that typically affects the fingernails. This condition is characterised by an invasion of yeast into the nail unit, particularly the nail bed.
Proximal subungual onychomycosis often manifests initially as white spots in the centre of the nail bed, near the cuticle. As the nail grows, these spots tend to move outward. In some cases, the nail may become discoloured, appearing yellowish, and can even start to separate from the nail bed. This type of infection usually affects individuals with compromised immune systems, such as those with HIV infection.
The yeast responsible for this condition, Candida, thrives in dark, warm, and moist environments, making it conducive to invade the nail unit. Proximal subungual onychomycosis is considered rare, but it can lead to severe complications if left untreated. These complications may include cellulitis, sepsis, osteomyelitis, tissue damage, and nail loss.
Treatment for proximal subungual onychomycosis typically involves oral or topical antifungal medications. Oral antifungals are usually preferred as they target the infection throughout the body. However, even with treatment, improvement may take months or even years. Additionally, there is a high recurrence rate associated with this condition, ranging from 5% to 50%. Therefore, early detection, prompt treatment initiation, and diligent follow-up care are crucial to managing this rare yeast infection effectively.
To prevent fingernail infections, it is advisable to keep the nails trimmed straight across and maintain proper hand hygiene. Avoiding repeated exposure to water and chemicals is also recommended, as these can compromise the integrity of the nails and make them more susceptible to infections.
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Distal or lateral subungual onychomycosis: a common nail fungus that causes yellow nail discolouration
Distal or lateral subungual onychomycosis is a common nail fungal infection. It is also known as mycotic nails. This type of infection affects the toenails and fingernails, causing them to separate from the nail bed, becoming thick and fragile. The affected nails may change colour and turn yellow. The distal end and sides of the nail may lift, crumble and become discoloured. The discolouration can manifest as white/yellow streaks or patches on the nail plate.
Onychomycosis is the most common nail disease, compromising over 50% of all nail diseases. It is caused by a fungus and can be treated with antifungal drugs. However, treatment can take months or years, and recurrence is common. The distal type of onychomycosis is the most prevalent.
The condition can be diagnosed by a healthcare provider through a visual examination and discussion of symptoms. To confirm the diagnosis, a nail clipping may be taken for microscopic analysis or sent to a laboratory for fungal culture. Treatment for onychomycosis aims to eliminate the fungus and restore the nail's health and appearance. While topical antifungal medications are available, oral antifungal medications are often required for several months to effectively treat the infection.
Fungal nail infections can be challenging to treat, and recurrence is frequent even after successful treatment. Preventative measures, such as keeping nails protected from chemicals and repeated exposure to water, are important to reduce the risk of infection and recurrence. In addition to medical treatment, maintaining nail hygiene and taking preventative measures can help manage onychomycosis.
It is important to note that some cases of onychomycosis may be more severe and require oral therapy or other specialised treatments. Seeking medical advice and following the recommended treatment plan is essential for effectively managing this common nail condition.
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Nail psoriasis: a condition that causes nail denting or crumbling
Fingernail infections can take many forms, with symptoms including pain, swelling, redness, and tenderness around the nail. One such infection is paronychia, which can be caused by bacteria entering broken skin near the cuticle and nail fold. Another is onycholysis, where the nail separates from the nail bed, possibly resulting in nail discolouration, additional skin tissue under the nail, nail pitting, nail thickening, or bending of the nail edges.
Nail psoriasis is a condition that causes nail denting or crumbling. It is an autoimmune disease, where the body's immune system overreacts, causing skin cells to reproduce quickly. This can lead to nail discolouration, with the skin underneath the nails (the nail bed) turning yellow, red, pink, or brown. The nails themselves may develop pits or dents, ranging in size from 0.4 to 2 millimetres, and in number from one or two to more than ten per nail. In some cases, the nails may grow so thin that they start to crumble.
Nail psoriasis can also cause the thick layer of skin underneath the tip of the nail to peel and slowly separate from the nail bed, a process known as onycholysis, which may lead to the development of nail fungus. Other symptoms of nail psoriasis include nail ridges, thickening nails, and separating nails (when the nail lifts up from the fingers or toes). While there is no cure for nail psoriasis, treatments such as corticosteroids, calcipotriol, and tazarotene can help alleviate symptoms. These treatments are typically applied directly to the nails once or twice a day for at least six months, although corticosteroids can also be injected directly into or near the nails.
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Frequently asked questions
A fingernail infection, or paronychia, is usually the result of a bacterial infection but can be caused by a virus or fungus. The infected nail fold will likely be red, swollen, and painful and may contain pus. The nail itself may look detached, abnormally shaped, or have an unusual color.
A fungal nail infection can cause the nail to become thick, yellow, and brittle. It may also be painful or uncomfortable, particularly when using or placing pressure on the affected finger.
Most bacterial nail infections can be treated with antibiotics. Antifungal medication may be recommended for severe or troublesome fungal nail infections.
