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Alopecia areata incognita causes widespread hair loss without patches and needs a scalp biopsy for diagnosis.

The conclusion is that certain scalp tissue changes are characteristic of lichen planopilaris, with mucinous perifollicular fibroplasia being a new feature for diagnosis.

Sunlight worsens hair loss; protect scalp.

Scalp cooling can help prevent chemotherapy-induced hair loss with a 50-90% success rate and is safe for patients.

Finasteride improves surrounding scalp hair and increases hair density after hair transplant.

Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.

Finasteride improves surrounding scalp hair and increases hair density after hair transplant.

T-cells in alopecia areata scalp show abnormal regulation, leading to less inflammation.

Aging scalp skin contributes to hair aging and loss, and more research is needed to develop better hair loss treatments.

Increased scalp sweating in frontal fibrosing alopecia may be linked to local skin inflammation.

Trichoscopy effectively diagnoses early female hair loss, but may need scalp biopsy for confirmation.

Male pattern baldness may be caused by factors like poor blood circulation, scalp tension, stress, and hormonal imbalances, but the exact causes are still unclear.

Hair loss reduces hair thickness and coverage, but drug treatments mainly revive dormant hairs rather than reverse thinning; patients often undervalue their hair loss severity.

Understanding the cause of bitemporal hair loss is key to deciding the right treatment.

A scalp biopsy is essential for accurately identifying different types of hair loss.

Six genetic conditions are often linked to complete scalp hair loss in children.

The document provides a method to classify human hair growth stages using a model with human scalp on mice, aiming to standardize hair research.

Using both vertical and transverse sections for alopecia biopsies improves diagnosis without extra cost.

Dandruff is linked to increased T cells and weakened immune protection in hair follicles.

Corkscrew hair may be a new sign for quickly diagnosing scalp fungus in black children.

The document concludes that scalp conditions have various causes and can present in many different ways.

Folliculitis decalvans is a rare scalp condition causing scarring hair loss, treated with long-term antibiotics and other medications, but it often comes back and is hard to manage.

Two teenage brothers had a rare, treatment-resistant form of female-pattern hair loss with unusual scalp changes.

Female pattern hair loss involves thinning hair on crown and frontal scalp, diagnosed by hair ratio, and treated with minoxidil, antiandrogens, or hair transplantation.

Trichoscopy is useful for diagnosing and monitoring systemic lupus erythematosus, with certain hair and scalp changes indicating more active disease.

Caffeine may help reduce stress-induced hair loss.

Two patients with skin lupus were mistakenly thought to have a different scalp condition but improved with lupus treatment.

The document describes how to tell different types of non-scarring hair loss apart by looking at hair and scalp tissue under a microscope.

The document concludes that accurate diagnosis of different types of hair loss requires careful examination of hair and scalp tissue, considering both clinical and microscopic features.

The document concludes that accurate diagnosis of hair disorders is crucial and requires a range of diagnostic methods.