How can morning stiffness in both hands distinguish tenosynovitis from rheumatism?

Rheumatic diseases and tenosynovitis can be differentiated by clinical manifestations, imaging examinations, etc.
Morning stiffness caused by rheumatic diseases is usually an inflammatory joint lesion, which lasts longer and is also accompanied by fever, pain, joint swelling, rash and other manifestations; tenosynovitis is usually caused by strain, trauma, inflammation, etc. Although painful symptoms may also occur, they can generally be identified by examining various antibodies in the blood and also by performing imaging comparisons.