If a person’s fingers are swollen, it is necessary to distinguish between different situations: 1, if it is localized finger swelling, that is to say, a finger or several fingers are swollen, rather than both hands of the diffuse finger swelling, the cause of the occurrence of the cause is likely to be a local cause, such as trauma, inflammation, mosquito bites, or thrombosis of the upper limb, need to treat different diseases; 2, if both fingers are If both fingers are swollen, the common local causes are allergy or trauma, but it is unlikely that both hands are swollen at the same time; 3. Excluding the local lesions are systemic lesions, such as cardiac diseases, renal diseases, rheumatic diseases and endocrine system diseases, and so on. Regardless of the disease, finger swelling is a sign of a more serious disease, need to actively treat the symptoms. Especially rheumatoid arthritis among systemic diseases, there can be diffuse swelling of the hands, and stiffness of the finger joints, which can be significantly relieved after activity, which is the main point of the differential diagnosis of rheumatoid arthritis.”