A touch of cold water finger belly tingling may be due to peripheral neuritis, rheumatoid arthritis, water allergy and other reasons. 1. Peripheral neuritis: Peripheral neuritis can lead to distal limb sensory deficits, neurological deficits, and motor deficits, etc. Some patients may experience tingling in the fingers when touching cool water. 2. Rheumatoid arthritis: the cause of rheumatoid arthritis is still unclear, patients in contact with cool water, will produce stimulation of the joints, resulting in joint pain, if the pain is more serious, may be radiated to the part of the finger belly. 3. Cold urticaria: after a sudden drop in temperature, immersion in cold water or contact with cold things, contact or exposed parts of the edema and wind, patients often have cold globulinemia, cold hemolysinemia, connective tissue disease, vasculitis disease or hematopoietic malignant lesions. When encountering cold water hand belly pain, patients should go to the hospital in a timely manner, to identify the cause of the treatment.