Scarring alopecia is seen in -
Causes of cicatricial alopecia: -Discoid lupus erythematosus and morphea - developmental /hereditary : aplasia cutis -traumatic, post radiation -herpes zoster and bacterial infections -lichen planopilaris - neoplastic disorders Ref Harrison20th edition pg 1234
T.Capitis
Androgenic alopecia
Alopecia areata
Lichen planus
Anatomy of skin