What causes lesions on the scalp?
Lesions on the scalp can have various causes, including:
1. Tinea Capitis: Commonly known as scalp ringworm, tinea capitis is a fungal infection that affects the scalp and hair follicles. It causes round, scaly, and itchy patches on the scalp, which can lead to hair breakage and bald spots.
2. Psoriasis: A chronic skin condition that can affect the scalp, causing red, scaly, and itchy patches. Scalp psoriasis can be mild or severe and may be associated with other forms of psoriasis on the body.
3. Seborrheic Dermatitis: A common skin condition that affects areas with many oil glands, including the scalp. It can cause itchy, red, and scaly patches on the scalp, along with dandruff.
4. Folliculitis: Inflammation of the hair follicles can lead to scalp lesions. Folliculitis can be caused by bacterial infections, fungal infections, or certain medical conditions.
5. Lichen Planus: A chronic inflammatory skin condition that can affect the scalp, causing itchy, red, and scaly patches. It may lead to hair loss in the affected areas.
6. Alopecia Areata: An autoimmune disorder that causes patchy hair loss on the scalp or other areas of the body. It is characterized by smooth, round, and well-defined bald spots.
7. Scarring Alopecia: This refers to permanent hair loss due to scarring or damage to the hair follicles. It can result from severe infections, burns, trauma, or certain medical conditions.
8. Contact Dermatitis: An allergic reaction on the skin caused by contact with certain substances, including hair products, dyes, or other chemicals. It can lead to itchy, red, and scaly lesions on the scalp.
9. Skin Cancer: Some types of skin cancer, such as basal cell carcinoma and squamous cell carcinoma, can develop on the scalp and appear as lesions or growths.
10. Telogen Effluvium: A temporary form of hair loss that can occur due to physical or emotional stress, hormonal changes, or certain medications. It may present with diffuse thinning or shedding of hair from the scalp.
It's essential to consult a dermatologist or healthcare professional to accurately diagnose and treat scalp lesions, as the specific cause may require different treatment approaches.