The redness of the palm of the hand may be related to long-term physical labor, or may be caused by hand skin allergies, liver disease and other reasons. 1. Long-term physical labor: for example, lifting heavy objects for a long time, resulting in the palm of the hand congestion and flushing, thus causing the palm of the hand red, which is a normal physiological phenomenon. 2. Hand skin allergy: common in allergic people, in the hands after contact with chemical dyes, soaps, detergents and other substances, is likely to cause an allergic reaction, may cause the whole palm redness, may also be accompanied by obvious itching, pain and other symptoms. 3. Liver lesions: due to liver dysfunction, resulting in the inactivation of estrogen in the body to produce obstacles, resulting in excessive accumulation of estrogen in the body, and the formation of stimulation of the capillaries, resulting in capillary congestion and dilatation, which over time may form the palm of the liver, which shows the palm of the hand redness. Common diseases include chronic hepatitis and cirrhosis. Redness of the palm of the hand, if accompanied by other signs of discomfort, should be as early as possible to seek medical attention, clear the cause of the disease, under the guidance of the doctor for treatment.