Dull, yellowish and lack of luster may be due to deficiency of qi and blood, dampness, spleen deficiency, liver and gallbladder dampness and heat (dampness and heat evils accumulated in the liver and gallbladder). 1. Deficiency of qi and blood: human skin, bones, muscles, etc. are dependent on the nourishment of qi and blood, when qi and blood deficiency when the skin is not nourished, there can be a dull, yellow, no luster of the face. 2. Dampness and spleen deficiency: due to over-eating fat, sweet and greasy causes of water and dampness, water and dampness trapped in the spleen and stomach, resulting in the role of the spleen and stomach to transport the water and grain essence of the role of dereliction of duty, resulting in deficiency of qi and blood, the appearance of dull, yellow, no luster of the performance. 3. Liver and gallbladder dampness and heat: alcoholism, overeating fat, sweet and spicy can cause liver and gallbladder dampness and heat, and dampness and heat steamed in the face, there can be a dull, yellow, no luster of the face. It is recommended that people who have a dull, yellowish, lack of luster face should consult a professional doctor in time for diagnosis and treatment.