Yellow tongue is usually caused by improper diet and cleaning, spleen and stomach disorders, and internal dampness and heat. 1. Improper diet and cleaning: If a woman consumes too much yellow substances, such as oranges, pigmented candies, etc., and at the same time does not brush her teeth in time to clean, resulting in too much food residue and bacteria on the tongue, it is easy to see the yellow tongue coating of women. 2. Spleen and stomach disorders: If the diet is too spicy and stimulating, resulting in a strong stomach fire, visible tongue coating yellow. 3. Dampness and heat: Dampness and heat are embedded in the spleen, stomach, liver and gallbladder in the middle jiao, causing high heat in the afternoon, body weight and fatigue, chest and epigastric plagued (chest and abdomen feel fullness and stuffiness), or jaundice, urination is unfavorable (urination is not smooth), the stool is sticky and greasy, and the tongue coat is yellow and greasy. 4. Excessive liver fire: Burning pain in the dorsal ribs and ribs, bitter and dry mouth, or vomiting of bitter water, irritability, insomnia, red face and eyes, constipation, yellow urine, and red tongue with yellow coating, which are caused by liver qi not being relieved, and the fire being transformed into fire after a long period of depression. 5. Yin deficiency: Yin deficiency, its moisturizing, serenity, subduing, shaping and restraining the function of yang heat, resulting in the emergence of dryness, heat, rising, moving and too much gas, such as Yang Qi relative hyper-heat symptoms, can be seen in the tongue coating yellow. If yellow tongue coating persists in women, it is recommended to see a doctor in time.