The biceps can rupture either at the top where it attaches to the shoulder or at the bottom where it inserts below the elbow on the radius, one of the two bones of the forearm.
If it ruptures at the top, the patient will have what is known as the Popeye sign. This can happen due to trauma or because of wear and tear. For treatment options see the page on
If it ruptures at the bottom, the muscle belly will move upwards and will need surgical repair as it weakens the flexion of the elbow as well as certain movements of the forearm.
This needs to be happen within three weeks before the tendon becomes too retracted to be re-attached.