Reversal of symptoms has been reported in between 10% to 22% of cases. Reversal cases have been seen in both<unk>  and normosmic CHH but appear to be less common in cases of<unk>  (where the sense of smell is also affected). Reversal is not always permanent and the precise genetic causes are not yet fully understood.
Kallmann syndrome
Klinefelter syndrome
Waldmann disease
Turner syndrome
Angelman syndrome
Hanhart syndrome
Parsonage–Turner syndrome
Gerstmann syndrome