From BBC News:
Nearly four in 10 women buy shoes knowing they do not fit, a poll of 2,000 reveals.
The Society of Chiropodists and Podiatrists found 37% would wear uncomfortable shoes as long as they were fashionable. And 17% of men admit buying shoes in the wrong size. Although 80% of the women said they suffered foot problems like corns or ingrowing nails, only four in ten of the men and women surveyed sought help.
Although "killer" high-heels can cause problems, slip-on shoes are one of the worst culprits, as they cause the foot to slide forward and cramp the toes.
Worst of all are court shoes, as they are low-fronted, giving no support to the foot, and tend to be too narrow in the toe.
Ms Jones said many people are wearing the wrong sized shoes on a daily basis without even realising it.