A woman who helped save the life of a stranger by donating bone marrow has finally met her.

Imogen Riddett, 22, of Windsor, signed up to the Anthony Nolan register after seeing a Facebook advertisement, a service that records the genetic make-up of those that sign up to it so they can be matched to others in need of life-saving stem cell transplants.

Ms Riddett said: "When you sign up, all you have to do is swab the inside of your mouth and send it off. There's only a very slim chance you'll ever get called up to be a donor."

But in December 2016, Ms Riddett was called up to provide an urgent stem cell transplant to a woman suffering from leukaemia – and she agreed immediately.

Ms Riddett said: "They called me up at work to tell me that I was a potential match. I went for a few further tests, and they confirmed me and the patient, Claire, were a match.

"I donated the bone marrow under general anaesthetic - they took two samples from my hip. It didn't hurt at all."

Recently, Ms Riddett has had the chance to meet the woman she helped save, Claire Daley, 33 who lives in Coventry.

"I hadn't thought about it too much over the two years, it was only upon meeting her that I realised I'd realised that I'd saved someone's life. It we haven't been matched, she might not be here today.

"Donating was the best thing I have ever done."

Mrs Daley had been travelling in America when she became stricken with unexplained tiredness, leading her to consult a doctor. They discovered that she was suffering from severe leukaemia, and was immediately rushed home while doctors searched for a stem cell donor.

Ms Riddett said: "The symptoms of leukaemia can be so miniscule - it can include things like tiredness and bruising, which many people just ignore. That's why raising awareness is so important."

Ms Daley has since made a full recovery from her illness.

Over 90 per cent of those on the register donate stem cells through a process similar to giving blood. Around ten percent are asked to donate bone marrow, which is performed under general anaesthetic at a hospital – Anthony Nolan will cover accommodation and travel costs.

Mrs Daley's husband, Matt, is doing a cycling challenge to raise money for Anthony Nolan. To find out more, visit https://www.justgiving.com/fundraising/matt-daly2 To join the register, visit: https://www.anthonynolan.org/