<prompt> Confirmatory diagnosis of Loose anagen hair syndrome is made by?Presence of loose anagen hair LAH 30Presence of loose anagen hair LAH 40Presence of loose anagen hair LAH50Presence of loose anagen hair LAH60  <response>: Presence of Loose anagen hair 50 is used to confirm diagnosis of LAH. The presence of anagen hair devoid of its sheath and with floppy sock appearance is a characteristic feature of loose anagen hair LAH on trichogram. The percentage of LAH in LAS is more than 50. Loose anagen syndromeLAS is a hair disorder in which the hair is loose and can be painlessly pulled from the scalp. Hair is not anchored into the scalp properly with no known cause. Affected patients have a bed head appearance and hair that doesnt seem to grow. 