If self-conscious hand swelling usually have the following factors: first, the most common factor is infectious factors, because the hand is particularly easy to contact with bacteria, viruses, fungi and other pathogenic microorganisms, in the bacterial infection there will be redness, swelling, heat, pain, dysfunction, accompanied by cellulitis of the hand, hand swelling, hand pain, and even subcutaneous tissue swelling and pain, dengue. Second, in the hand non-bacterial infection that is aseptic inflammation, hand swelling can also occur, such as hand rheumatoid arthritis, rheumatoid arthritis, dermatomyositis, there will also be hand swelling of the clinical symptoms and performance. Thirdly, in patients with peripheral radiculitis, diabetes mellitus is especially likely to occur when there is a history of diabetes mellitus combined with peripheral neuritis, and at this time there will also be hand swelling clinical symptoms and performance. In addition, poor venous return can also cause hand swelling.