Evaluation and Diagnosis of the Hair Loss Patient

The document reviewed the use of trichoscopy, a noninvasive technique for evaluating hair and scalp disorders, highlighting its diagnostic value in differentiating various types of alopecia and other hair loss conditions. Trichoscopy allowed for the magnified observation of hair shafts, follicle openings, and blood vessels, aiding in the diagnosis of conditions such as alopecia areata, patterned hair loss, telogen effluvium, trichotillomania, tinea capitis, lichen planopilaris, frontal fibrosing alopecia, folliculitis decalvans, dissecting cellulitis, and discoid lupus erythematosus. The document emphasized that trichoscopy is a quick, cost-effective bedside technique that provides key diagnostic information, helping to assess the activity and severity of hair loss disorders and guiding biopsies for accurate pathological assessment.