Itchy and swollen fingers and palms may be related to physiological factors, or may be caused by allergic dermatitis, ringworm and other causes. 1. Physiological factors: if recently engaged in a long time in frequent heavy physical labor, such as lifting heavy objects for a long time, resulting in wear and tear of the skin on the hands, may cause the fingers and palms of the itchy and swollen, may also be accompanied by pain, weakness and other manifestations. 2. Allergic dermatitis: common in allergic body, in the hand contact detergent, laundry detergent, chemical materials and other substances, is likely to cause an allergic reaction, resulting in the finger palm itchy and swollen, may also be accompanied by local pimples, erythema, blisters and other symptoms. 3. Ringworm: the disease is usually caused by ringworm infection, in the inflammatory stimulation of pathogenic bacteria, may lead to itchy and red swollen fingers and palms, may also be accompanied by flaking, blisters and other manifestations. Itchy and swollen fingers and palms, may also be caused by other reasons, it is recommended to consult a doctor as soon as possible, after identifying the cause, by the doctor to give targeted treatment.