Finger belly cold finger pain may be related to thromboembolic vasculitis, osteoarthritis and so on. 1. Thromboembolic vasculitis: Thromboembolic vasculitis is a kind of inflammatory, recurrent chronic occlusive disease involving blood vessels, mostly involving the middle and small arteries and veins of the limbs, often with symptoms of low skin temperature and pain, accompanied by skin pallor and sensory abnormalities, and when the condition is serious, it can lead to dry gangrene, or even combined with ulcers or infections. 2. Osteoarthritis: it is a kind of chronic joint disease whose etiology is still unclear, clinically it is mainly characterized by degenerative changes of articular cartilage and secondary bone hyperplasia, which may be related to heredity, load bearing, metabolism inflammatory factors, etc. Osteoarthritis often involves the distal part of the fingers. Osteoarthritis often involves the distal joints of the fingers, resulting in the symptoms of cold finger pain, but also manifested in the joints and their surrounding stiffness, joint bony hypertrophy and dysfunction. Finger cold finger pain can also be caused by other diseases, it is recommended to go to the hospital in a timely manner to improve the vascular ultrasound, finger CT, MRI and other auxiliary examinations, a clear diagnosis after the appropriate treatment.