The number of hip replacement operations on people aged under 60 has risen 76% in the last decade, NHS figures for England reveal.
In 2004-05 there were 10,145 hip replacements for people aged 59 and below, with 17,883 in 2014-15. The Royal College of Surgeons says this is partly because doctors are now more confident that replacement joints will be more durable than in the past. Patients are also said to be less willing to wait.
Demand for new hips across all ages has risen - there were 89,919 of the operations in 2004-05 and 122,154 in 2014-15.
Stephen Cannon, vice-president of the RCS, says as hip replacement techniques and prosthetics have improved, so have the numbers of younger patients undergoing this type of surgery.
"It's no longer seen as a last resort. As surgeons, we now have more confidence about the wear rate of these prosthetics which allows us to be less restrictive on an age basis."