Polyarthrosis is a chronic systemic disease characterized by damage to predominantly peripheral joints, the synovial membrane and subsequent destruction of cartilage against the background of a congenital or acquired decrease in the functional activity of the synovial membranes of the joints. The development of polyarthritis of the joints is associated with the presence of the enzyme lysozyme. It is produced by other tissues for protection. Normally, this enzyme performs the function of disinfecting surrounding tissues, but when they cannot be immunoglobulins, which will provide support to the joint at the site of the lesion. As lysocin accumulates in the joint, cartilage tissue is destroyed, the destruction of cartilage leads to deformation