https://en.wikipedia.org/wiki/Kallmann_syndromeHitler apparently suffered from something known as Kallmann syndrome. This medical condition entails various health complications, among which are; delayed or incomplete puberty in males, infertility, and underdevelopment of the genitals, the last one possibly leading to the afflicted person having a micropenis if male. The treatment is hormone replacement therapy, that is, HRT.
He LITERALLY had the clittycel syndrome.