How can someone so young do something so unselfish?

Colin Southwood is an amazing boy. At just five years of age he asked his mum if he could grow his hair and donate it to cancer patients.

Denise Southwood thinks it was a TV commercial for a children's hospital that inspired him, as well as an advertisment for the Pantene Beautiful Lengths program, which makes wigs for cancer patients out of donated hair. At the time, his grandmother, two great-grandparents and a teacher at school had all been diagnosed with cancer.

People mistook him for a girl as his hair grew and he was even teased, but he was determined to see it through.

"I'm proud that he came to this decision by himself. I get choked up really thinking about it," his mum told Huffington Post.

In May, the now 10-year-old decided his hair was long enough to cut. He went to the hairdresser and had 33cm cut off for the purposes of donation.

He sent this letter to go along with his donated hair:

And Colin isn't stopping. He's doing it all again. "He's a good-hearted kid," Ms Southwood said.

Slight understatement there, Mum!

Has your child ever done something that's moved you to tears?  

Images credit: Denise Southwood