In 2004, Roddick was diagnosed with liver cirrhosis due to long-standing hepatitis C. She did not reveal her illness until 14 February 2007. Roddick said, "I have hepatitis C. It's a bit of a bummer, but you groan and move on". She subsequently promoted the work of The Hepatitis C Trust, and campaigned to increase awareness of the disease. On 30 August 2007, less than two weeks before her death, Roddick was a special guest in an episode of the live television programme "Doctor, Doctor" broadcast on Channel 5 in the UK. She discussed hepatitis C with the presenter and general practitioner, Mark Porter.