這位西南薩里郡的保守黨議員說，"他的每個家庭成員 "都得過這種病，他自己也有 "一個小病"。
The Conservative MP for South West Surrey said "every member of his family" has had the disease and that he had "a minor one" himself.
He is now planning to take part in a three-mile (5km) race to raise money for cancer charities in July.
Mr Hunt, who was health secretary from 2012 to 2018, said: "My work on the select committee has shown me there are lot of things we can do to improve our cancer survival rates."
The former foreign secretary, who ran against Boris Johnson in the Conservative leadership race in 2019, said: "Cancer survival rates are getting better but the more we can do to raise money and raise awareness, the more lives we'll save."
The pair are also supporting a campaign to establish a cancer and surgical innovation centre at the Royal Surrey Hospital in Guildford.
Ms Richardson said: "There will be few of us who have been untouched by cancer, with one in two people now developing it at some stage of our lives.