Bicipital Tenosynovitis

Bicipital tenosynovitis describes inflammation affecting the biceps tendon and the sheath that surrounds it as it runs along the front of the shoulder. The biceps tendon plays a role in stabilising the shoulder joint and assisting certain movements of the foreleg, and when the tendon or its protective sheath becomes inflamed, this can lead to discomfort and altered use of the limb. Owners most often notice limping that may be subtle at first, particularly after rest or in the morning, or a reluctance to bear full weight on the affected front leg. The lameness may improve with gentle movement and worsen again after exercise. Some dogs show stiffness when navigating stairs or resist certain movements that involve extending the shoulder. This page explores the patterns that may raise the possibility of bicipital tenosynovitis, what is understood about the underlying changes in the tendon and surrounding structures, how the condition is investigated through examination and imaging, and the range of approaches—both conservative and interventional—that may be considered depending on severity and response.