Kallmann syndrome is a medical condition marked by the delayed onset or absence of ... The syndrome affects approximately 1 in 10,000 to 86,000 people and is more common in males than females.

Eleven of the men (73%) had normosmic idiopathic hypogonadotropic hypogonadism, and four (27%) had the Kallmann syndrome. Two of the latter men (Patients 2 and 4) had no olfactory bulbs on MRI.

Pan Longfei is afflicted with Kallmann syndrome, a rare genetic disorder that prevents sufferers from fully completing puberty. The 30-year-old lacks such male attributes as armpit hair, an Adam ...

ORLANDO -- A man with Kallmann syndrome and an abnormally small penis gained more than half an inch when he started taking testosterone, researchers reported here.. The testosterone therapy ...

But in people born with Kallmann syndrome – and it seems to affect males more than females – these nerve cells don't work properly, so they never get that signal and don't go through puberty.

Hypogonadotropic patients may visit pediatricians, general practitioners, endocrinologists or urologists, presenting with microphallus, cryptochidism or pubertas tarda and delayed bone maturation.

Approximately 10-15% of male patients with Kallmann syndrome may be able to have their hypogonadism reversed. For this reason, testing should be conducted to investigate evidence of reversibility ...