Alopecia

Alopecia refers to the partial or complete loss, thinning, or absence of hair in regions of the body where hair normally grows, most commonly involving the scalp

Alopecia refers to the partial or complete loss, thinning, or absence of hair in regions of the body where hair normally grows, most commonly involving the scalp Primarily affecting the integumentary system, this condition can manifest across all ages, sexes, and demographics as a localized, patchy, or diffuse process

Alopecia refers to the partial or complete loss, thinning, or absence of hair in regions of the body where hair normally grows, most commonly involving the scalp Clinically and pathologically, it is broadly classified into nonscarring alopecia—where hair follicles remain biologically viable and capable of regeneration—and scarring (cicatricial) alopecia, characterized by inflammatory follicular destruction and permanent replacement with fibrous tissue

Primarily affecting the integumentary system, this condition can manifest across all ages, sexes, and demographics as a localized, patchy, or diffuse process Clinically and pathologically, it is broadly classified into nonscarring alopecia—where hair follicles remain biologically viable and capable of regeneration—and scarring (cicatricial) alopecia, characterized by inflammatory follicular destruction and permanent replacement with fibrous tissue

Etiologies encompass a diverse spectrum, including autoimmune disruption of hair follicle immune privilege, androgen-driven follicular miniaturization, mechanical tension, systemic illness, nutritional deficits, and medication toxicity

Etiologies encompass a diverse spectrum, including autoimmune disruption of hair follicle immune privilege, androgen-driven follicular miniaturization, mechanical tension, systemic illness, nutritional deficits, and medication toxicity

Etiologies encompass a diverse spectrum, including autoimmune disruption of hair follicle immune privilege, androgen-driven follicular miniaturization, mechanical tension, systemic illness, nutritional deficits, and medication toxicity

Etiologies encompass a diverse spectrum, including autoimmune disruption of hair follicle immune privilege, androgen-driven follicular miniaturization, mechanical tension, systemic illness, nutritional deficits, and medication toxicity

Etiologies encompass a diverse spectrum, including autoimmune disruption of hair follicle immune privilege, androgen-driven follicular miniaturization, mechanical tension, systemic illness, nutritional deficits, and medication toxicity