Synovial inflammation refers to the inflammatory process occurring in the synovial membrane, a specialized connective tissue lining the inner surface of capsules of synovial joints. This inflammation often leads to pain, swelling, and reduced joint function. The synovial membrane plays a critical role in joint health by producing synovial fluid, which lubricates and nourishes cartilage. During inflammation, the membrane thickens, and the production of inflammatory cytokines increases, exacerbating joint damage.