Prader-Willi syndrome (PWS) is a rare genetic condition that causes a wide range of problems.
These may include:
- A constant desire to eat food, which seems driven by a permanent feeling of hunger and can easily lead to dangerous weight gain.
- Restricted growth, leading to short stature.
- Reduced muscle tone (hypotonia).
- Learning difficulties.
- Lack of sexual development.
- Behavioural problems, such as temper tantrums or stubbornness.