The commission "Rehabilitation" of the German Society of Rheumatology compiled a data set for a routine report of the rehabilitation system for muskuloskeletal diseases. More than 250 rehabilitation hospitals offer inpatient rehabilitation for patients with musculoskeletal diseases. The prevalence of inpatient rehabilitation decreased due to new legislative rules in 1997, increased again thereafter but has not reached the former level. The prevalence of inpatient rehabilitation during the preceding year in patients with inflammatory rheumatic diseases treated by rheumatologists amounts to 12% with higher figures in men than in women and lower figures in the area of the former German Democratic Republic. The prevalence of outpatient rehabilitation increased during the last few years but, currently, does not exceed 5% of the entire rehabilitation procedures.