Hypertrichosis is related to hypertrichosis universalis congenita, ambras type and wiedemann-steiner syndrome. An important gene associated with Hypertrichosis is ARID1B (AT-Rich Interaction Domain 1B), and among its related pathways/superpathways are Dopamine-DARPP32 Feedback onto cAMP Pathway and Inwardly rectifying K+ channels. The drugs Pharmaceutical Solutions and Bimatoprost have been mentioned in the context of this disorder. Affiliated tissues include skin and smooth muscle, and related phenotypes are nervous system and homeostasis/metabolism