1. Paronychia:
* Description: This is the most common cause. It's an infection of the skin folds surrounding the nail. It can be acute (sudden onset) or chronic (long-lasting).
* Cause: Bacteria (usually Staphylococcus aureus), fungi (Candida), or, less commonly, viruses. Often occurs due to minor trauma, like nail biting, picking at hangnails, or aggressive manicuring.
* Symptoms: Redness, swelling, pain, warmth, and possibly pus around the nail folds. The nail itself may thicken or become discolored.
* Treatment: Warm soaks, topical antibiotics (for bacterial infections), antifungal creams (for fungal infections), or, in severe cases, oral antibiotics or drainage of an abscess.
2. Dermatitis/Eczema:
* Description: Inflammatory skin conditions that can affect the skin around the nails.
* Cause: Irritants (harsh soaps, chemicals), allergens (nail polish, acrylics), or underlying skin conditions like atopic dermatitis.
* Symptoms: Redness, itching, scaling, dryness, and sometimes small blisters. The skin around the nail may become thickened and cracked.
* Treatment: Avoidance of irritants, emollients (moisturizers), topical corticosteroids, or, in severe cases, systemic corticosteroids.
3. Psoriasis:
* Description: An autoimmune condition that can affect the skin, nails, and joints.
* Cause: Genetic predisposition and environmental triggers.
* Symptoms: Pitting of the nails, thickening, onycholysis (separation of the nail plate from the nail bed), discoloration, and sometimes inflammation around the nail folds (psoriatic paronychia). Red, scaly patches may be present on other parts of the body.
* Treatment: Topical corticosteroids, vitamin D analogs, topical retinoids, or, in severe cases, systemic medications like methotrexate or biologics.
4. Connective Tissue Diseases:
* Description: Certain autoimmune connective tissue diseases, such as lupus, dermatomyositis, and scleroderma, can affect the skin and nails.
* Cause: Autoimmune dysfunction.
* Symptoms: Varies depending on the specific disease. In the nail area, you might see changes to the nail folds, cuticles, or nail plate. "Periungual telangiectasia" (visible small blood vessels near the nail fold) is a common finding in some connective tissue diseases. Raynaud's phenomenon (fingers turning white or blue in response to cold) may also be present.
* Treatment: Varies depending on the underlying disease and may involve immunosuppressants, corticosteroids, or other medications.
5. Nail Trauma:
* Description: Injury to the nail or surrounding tissue.
* Cause: Hitting the nail, getting it caught in something, or overly aggressive manicuring.
* Symptoms: Redness, swelling, pain, bruising, and sometimes bleeding under the nail. The nail may become detached from the nail bed (subungual hematoma).
* Treatment: Rest, ice, elevation. A small subungual hematoma may resolve on its own. A larger hematoma may need to be drained by a doctor to relieve pressure.
6. Tumors/ Growths:
* Description: Rare, but possible. Certain tumors can grow under the nail or near the nail fold.
* Cause: Abnormal cell growth.
* Symptoms: Can be varied, but may include nail plate distortion, pain, bleeding, and swelling.
* Treatment: Usually surgical excision.
7. Allergic Reaction:
* Description: An allergic reaction to something that has come in contact with your skin (eg. acrylics, nail glue, nail polish etc.)
* Cause: Reaction to a product.
* Symptoms: Redness, swelling, pain, itching, blisters, dry skin.
* Treatment: Discontinue use of product, topical/oral antihistamines, topical corticosteroids.
When to See a Doctor:
* If the redness and swelling are severe or accompanied by pus.
* If you have a fever or other signs of systemic illness.
* If the condition does not improve with home treatment.
* If you have an underlying medical condition (like diabetes or a compromised immune system).
* If you suspect a tumor or growth.
* If you are unsure of the cause.
Important: This information is for general knowledge and does not substitute professional medical advice. A doctor can properly diagnose the cause of your symptoms and recommend the best treatment plan. It is crucial to seek their guidance for accurate diagnosis and treatment.