There are many reasons for finger straightening and jamming, including tenosynovitis, osteoarthritis, rheumatoid arthritis and other factors.
1. Tenosynovitis: due to long-term hand labor, resulting in tendon edema or thickening of the tendon sheath, causing finger straightening stuck, manifested as limited finger flexion and extension, usually accompanied by pain.
2. Osteoarthritis: Finger flexion and extension are unfavorable due to cold or exertion of the finger joints, which is mainly manifested as straightening and jamming, soreness, popping and ringing.
3. Rheumatoid arthritis: due to problems in the immune system, it infringes on the surrounding small joints, causing unfavorable finger movement, which manifests itself in symptoms such as morning stiffness, jamming, arthralgia, and swelling of the joints.
There are many other causes of finger straightening and jamming, such as intra-articular free body, fracture and tendon adhesion, etc. Please consult a doctor in time to clarify the cause of the disease before treatment.