The increase of hip-replacement is also seen in departments of rehabilitation. Among 270 operations during 1974/75 the main age at operations was 50-59 years. Para-articular ossification was more common in men than women. Function was disturbed more often in women, pain more common after operations other than replacement. Unfitness for work and compensation depend on the degree of limitation of mobility and weightbearing related to occupation. Because of relatively common complications and still unsatisfactory postoperative improvement, indication for replacement ought to be more critical. Conservative measures often give astonishingly good results, delay progressive symptoms. Techniques preserving the joint should be exhausted before the proper age for operation is reached.