PATHOLOGY

Detailed explanation-1: -Alopecia areata is a disease that happens when the immune system attacks hair follicles and causes hair loss. Hair follicles are the structures in skin that form hair. While hair can be lost from any part of the body, alopecia areata usually affects the head and face.

Detailed explanation-2: -This type of baldness is not usually caused by a disease. It is related to aging, heredity, and changes in the hormone testosterone. Inherited, or pattern baldness, affects many more men than women. Male pattern baldness can occur at any time after puberty.

Detailed explanation-3: -Corticosteroid injections People with alopecia areata develop hair loss when their immune systems attack the body’s natural processes. Corticosteroids work to prevent these attacks from happening.