Prader-Willi syndrome

Prader-Willi syndrome


Prader-Willi syndrome results from deletion of genetic material from the chromosome 15 inherited of paternal origin, and is a classic example of imprinting.

Typical features include:-

  • Hyperphagia (excessive eating) and obesity
  • Short stature
  • Delayed puberty, hypogonadism, infertility
  • Learning difficulties
  • Compulsive behaviour (e.g. skin picking)