The long head tendon of biceps brachii is a special anatomical structure in the glenohumeral joint. The formation of the Pulley complex is essential to the biomechanics of the shoulder and is considered to be a dynamic stabilizer in coordination with other structures, such as the rotator cuff. The pathological features of LHBT are anterior shoulder pain, which can be caused by chronic inflammation. SLAP damage Instability or the combination of factors above. Because of the anatomical and biomechanical characteristics of LHBT and its interaction with other anatomical structures in the shoulder joint, it is rare for LHBT to develop a single lesion clinically. Among them, rotator cuff injury is closely related to the pathological changes of LHBT. The complexity of LHBT lesions is a major challenge for clinicians in diagnosis and treatment.