<unk>  is a disorder characterized by absent or decreased function of the male testes or the female ovaries. It is a rare kind of hereditary disease. Usual signs and symptoms include anosmia, short stature, underdeveloped testicles and lack of development at puberty and absence of secondary sexual characteristics. Researches have demonstrated gene mutations in the KAL1, FGFR1, PROKR2, and PROK2 cause<unk> . Clinical appearance of the patient, hormone tests and crinial MRI may help doctor diagnose the disorder. Treatment for patients with<unk>  involves gonadal steroids to induce and maintain  secondary sex characteristics and help fertility. Many patients have good prognosis with the right hormone treatment.
Kallmann syndrome
Kostmann syndrome
Wolman disease
Kallman syndrome
Turner syndrome
Angelman syndrome
Hanhart syndrome
Klinefelter's syndrome