Ashanti Elliot Smith, aged 11, suffers from a rare ageing disease called Hutchinson Gilford Progeria and also has alopecia.
When she turned up for school in West Sussex in a bubblegum pink wig, she was told to take it off because it could encourage fellow pupils to dye their hair the same colour.
Her mother, Phoebe Smith, 29 said she was horrified at the school ordering her daughter to remove the hair piece.
She said: ‘She was devastated when they told her to take it off. Her little heart was broken, it’s disgusting.’
Ms Smith explained that the wig was donated by a friend as the family cannot afford human hair wigs.
‘It’s a pink wig, come on, other children would have understood. I have only got a few years left with her so we want her to live it to the full’ said her mother.
Due to her disease, Ashanti is not expected to live past 15 but recently fulfilled a lifelong wish to swim with dolphins in Florida. This dream was made possible despite her father hitting headlines after being jailed for stealing the £3,500 donated by charity for the trip.
Her school, Oakmeeds Community College in Burgess Hill, has not made a comment regarding the incident.