The document discusses characteristics of hair affected by Psora including thin, dry, and lusterless hair that appears dead like hemp. Hair loss can occur after acute illness or fever and after childbirth. The hair may be grey in color, particularly in the middle of the head, and can become white or grey in spots or grey prematurely. Dandruff may be present that is bran-like with or without itching. Hair may also grow on the shoulder blades when Psora is combined with sycosis.