The rupture of the biceps tendon has either thraumatic or spontaneous degenerative etiology. Degenerative tears can occur during physiological abduction of shoulder, just it has been verified in woman affected by arthromyalgic chronic pain, due to arthrosis, or lifting light weight, like the second case showed. Clinical suspect has been confirmed by ultrasound in emergency, validating surgical decision, that’s the only treatment for this kind of pathology (arthroscopic or wide open surgery).