Rupture of the adductor longus muscle of the thigh is a rare injury. It is produced by several causes, but indirect force is much more frequent than other causes. Wide abduction of the legs may produce rupture of the adductor longus muscle. Palpable mass appears at the upper third of the thigh and become more prominent during contraction of the adductor muscles. We have had the opportunity to examine 5 patients with ruptured adductor longus muscles of the thigh and report them in this paper.