The use of corticosteroids in and around joints is warranted in a variety of clinical situations. The technique itself is well suited to office practice, is readily learned, and thus falls well within the domain of the family physician. The indications, contraindications, and potential complications of intraarticular steroids are reviewed, and the actual mechanics of injecting the knee and shoulder are presented. The coadministration of lidocaine can provide immediate relief and may also be of diagnostic use.