Possible signs
- smooth, shiny hairless skin
- fewer follicular openings
- pain, burning or itch
- redness, scale, pustules or crusts
Hair dermatology · São Mateus, Espírito Santo
Scarring alopecia describes diseases in which inflammation or destruction can replace the follicle with scar tissue. Recognising activity early is essential to preserve remaining hair.

Dermatology care
Lichen planopilaris, frontal fibrosing alopecia and folliculitis decalvans are examples. Each has different signs and treatment.
Possible presentation
Causes vary by subtype and may involve autoimmunity, perifollicular inflammation, neutrophils, associated infection or prolonged traction.
Appearance alone cannot confirm the type of alopecia. Pattern, timing and symptoms change the investigation.
Evaluation
Onset, speed, triggers, illness, medicines, styling habits and family history are reviewed.
Clinical examination and trichoscopy are fundamental. Many cases require a biopsy of an active area to define the subtype and guide treatment.
The type and activity of alopecia, together with general health, determine whether tests, biopsy, treatment or monitoring are appropriate.
Care
Treatment aims to control inflammation and prevent new scarring. Medicines and procedures are selected according to cause, activity, extent and overall health.
Correct or control an identifiable trigger whenever possible.
Reduce inflammation, traction or progression to protect viable follicles.
Compare symptoms, photographs and density over time without promising the same result for everyone.
Hair loss with pain, burning, pustules, scale, perifollicular redness or eyebrow loss should be assessed without waiting for progression.
FAQ · common questions
Some subtypes enter remission, but established scar tissue usually cannot produce hair. The goal is to control activity and preserve remaining follicles.
No. Alopecia areata generally preserves follicles, while scarring forms can destroy them. Examination differentiates them.
Not always, but it is often recommended when the subtype is unclear or activity needs confirmation.
Only selected stable cases may be considered after inflammation is controlled; it is not the first diagnostic step.
Waiting without assessment may allow permanent loss. Inflammatory symptoms justify early review.
References
Educational content reviewed for patient communication. It does not replace a medical consultation, diagnosis or prescription.