Biceps muscle tendon arises from the shoulder joint and is usually inflamed secondary to a rotator cuff pathology or SLAP lesions. Although, in athletes it might occour in isolation also. The main reason is a supra-physiological loading of this tendon due to exercises or repetitive micro-trauma.
Fraying of this tendon is commonly seen in overhead athletes and may also be associated with instability and throwing shoulder also. A precise diagnosis is imperative to treatment and needs orthopedic consultation and tailored exercise regime.
Surgery might be warranted in cases where it is associated with rotator cuff and SLAP lesions or even isolated Biceps tendon tear.