Familial male-limited precocious puberty

Familial male-limited precocious puberty, often abbreviated as FMPP, also known as familial sexual precocity or gonadotropin-independent testotoxicosis,[1] is a form of gonadotropin-independent precocious puberty in which boys experience early onset and progression of puberty.[2] Signs of puberty can develop as early as an age of 1 year.

Familial male-limited precocious puberty
Other names	Familial sexual precocity
Male-limited precocious puberty has an autosomal dominant pattern of inheritance. However, only males are affected; females with the mutant gene are not affected.

The spinal length in boys may be short due to a rapid advance in epiphyseal maturation. It is an autosomal dominant[1] condition with a mutation of the luteinizing hormone (LH) receptor. Treatment is with drugs that suppress gonadal steroidogenesis, such as cyproterone acetate, ketoconazole, spironolactone, and testolactone.[3] Alternatively, the combination of the androgen receptor antagonist bicalutamide and the aromatase inhibitor anastrozole may be used.[4]