Why do mites appear on the head? - briefly
The presence of «mites» on the scalp results from favorable conditions such as excess sebum, warm humidity, and close head‑to‑head contact, which enable them to feed and reproduce. Treatment requires medicated shampoos and strict hygiene to eradicate the infestation.
Why do mites appear on the head? - in detail
Mites are commonly found on the scalp because the environment provides suitable conditions for their survival and reproduction. The primary species involved, Demodex folliculorum and Demodex brevis, inhabit hair follicles and sebaceous glands, feeding on skin cells, oil, and bacteria.
Several factors increase the likelihood of infestation:
- Excessive sebum production creates a nutrient‑rich medium.
- Warm, humid climates accelerate mite metabolism and population growth.
- Poor scalp hygiene allows accumulation of debris and dead skin.
- Skin disorders such as rosacea, eczema, or psoriasis disrupt the barrier function, facilitating colonisation.
- Immunosuppression, whether due to illness or medication, reduces the body’s ability to control mite numbers.
- Use of oily hair products or heavy conditioners provides additional food sources.
Detection typically involves microscopic examination of scalp scrapings or skin surface biopsies. Symptoms may include itching, burning sensations, and the appearance of fine, white particles resembling dandruff. In severe cases, inflammation can lead to folliculitis or secondary bacterial infection.
Management strategies focus on reducing mite density and restoring scalp health:
- Regular cleansing with medicated shampoos containing tea‑tree oil, sulfur, or benzoyl peroxide.
- Application of topical acaricides such as ivermectin or permethrin under medical supervision.
- Adjusting hair‑care routines to avoid overly greasy products.
- Maintaining a balanced diet and adequate hydration to support skin integrity.
- Consulting a dermatologist for persistent or worsening conditions, especially when underlying skin disease is present.
Prevention relies on consistent hygiene, avoidance of excessive oil‑based cosmetics, and monitoring for changes in scalp condition that may signal an early infestation.