<unk>  is a condition where hair does not grow beyond a<unk>  length, due to an unusually<unk>  duration of active hair growth (anagen phase). Most cases are associated with fine blond hair.
Short anagen syndrome
Loose anagen syndrome
Persistent adrenarche syndrome
Kallmann syndrome
Angelman syndrome
Androgen insensitivity syndrome
Premature thelarche
Hypergonadotropic hypogonadism