Palm redness is generally not a manifestation of high blood fat. Palm redness may be a physiological manifestation of capillary dilation, may also be due to contact dermatitis, cirrhosis of the liver and other diseases caused by the cause of the disease should be promptly sought medical attention to identify the cause. 1. Physiological: when the weather is hot or excessive warmth will make the body temperature continues to rise, can make the blood vessels expand to cause the whole body to accelerate the speed of blood flow, which leads to the palm of the local capillary dilatation, so that the palm of the skin appears red phenomenon. This is a physiological reaction, generally do not need special treatment. 2.Pathologic (1) Contact dermatitis: refers to the inflammatory reaction of the skin outside the contact area or even the contact area after the skin comes into contact with some external substances. It often occurs in the exposed parts of the body, and may produce erythema, edema, papules and other manifestations in mild cases. (2) Liver cirrhosis: liver function decreases in cirrhosis, resulting in the inactivation of estrogen, so that estrogen accumulates in the body to stimulate capillary congestion and expansion, thus causing red palms, clinically known as “liver palm”. Palm redness has many causes, it is recommended that patients exclude physiological factors and then consult a doctor for diagnosis and treatment as prescribed by the doctor.