label: acquired kinky hair syndrome
label_lc: acquired kinky hair syndrome
description: Acquired progressive kinking of the hair (APKH) is a rare hair disorder characterized by the appearance of lustreless, curly, frizzy, and coarse hair generally during adolescence predominantly in the frontal, temporal, and vertex regions of the scalp. Eyelashes, as well as growth and pigmentation of the hair, may also be affected.