There are many symptoms of shoulder synovitis, the main ones being impaired mobility, pain and joint swelling. 1. Mobility disorder: due to joint pain and swelling, shoulder synovitis obviously impairs shoulder joint movement and restricts the range of motion, especially in supination and forward flexion movement, which will obviously show mobility disorder. 2. Pain: Shoulder synovitis can show persistent and diffuse shoulder joint pain, which is more obvious after activities, but the pressure point is not certain after examination. 3. Joint swelling: synovitis may cause joint effusion, which may result in joint swelling and indentation when the skin is pressed, and rebound when the skin is loosened. In severe cases of synovitis, the skin on the surface of the joint may become red and hot. There are many symptoms of shoulder synovitis, after the appearance of the above symptoms, it is recommended that patients go to the hospital in a timely manner, follow the doctor’s instructions to take standardized treatment, do not ignore the symptoms, take it lightly, so as not to delay the treatment of the condition.