Jamming tendinitis, also known as shooting or crackling finger, is a disease in which, as a result of a conflict between the thickened flexor tendon and the flexor sheath, symptoms of finger skipping develop. Most likely, the development of this disease is a continuation of a congenital stricture within the entrance to the flexor tendon fibrous sheath and secondary to this disturbance in the outflow of lymph from the tendon. The result is a lump and inflammation. Bending your finger initially causes pain when you bend your finger. Often the pain is located within the finger - that is, further than the actual conflict (i.e. at the level of the metacarpus). In more advanced stages, in addition to pain, skipped symptom appears during the finger flexion movement. In the advanced form of the disease, it is impossible to straighten the finger, as it becomes completely jammed, and as a result, it remains in a bent position. Thus, the disease makes it difficult to perform daily activities, limiting the patient's functioning.