A finger appears red, swollen and painful common reasons are as follows: First, finger infection, finger often in the work or life suffered skin trauma, bacteria from the wound invasion of the body, resulting in the corresponding symptoms of infection, there will be red, swollen and painful fingers. Second, common in gout patients, gout will lead to the body of the blood in the blood uric acid increase, in the cold or local injury triggers, will lead to blood uric acid supersaturation, and thus deposited in the local gouty arthritis, resulting in local redness, swelling, heat, pain. Third, can be seen in the fingers of the sterile inflammation, will also produce corresponding redness, swelling, pain, such as common rheumatoid arthritis or tendons, ligaments, soft tissue inflammation, can produce corresponding symptoms.