The face is actually a microcosm of the human body, with the five internal organs corresponding to the middle part of the face and the limbs corresponding to the lower middle part of the outer cheek. It is clinically found that where there is chloasma, the meridians and internal organs corresponding to that part often have problems. The darker the color of melasma and the clearer the boundary, the more obvious the symptoms are, while lighter spots often appear before the conscious symptoms. Therefore, the health condition of internal organs can be understood early by observing the location of melasma. 1.Long on both sides of forehead and temples: This is the circulation part of bile meridian on both sides, if there is chloasma, it is often caused by dysfunction of liver and gallbladder, liver depression and gas stagnation, and often has symptoms of weakened digestive function and insomnia and dreaminess. 2.Long under the outer corner of the eye: The outer corner of the eye corresponds to the neck and shoulder and the upper limbs. The appearance of chloasma here indicates that the shoulder joint is attacked by wind and cold or the neck and shoulder muscles are strained, often with symptoms of neck and shoulder stiffness and soreness, and should be alert to the neck and shoulder disorders. 3.Long in the middle of the bridge of the nose: the middle of the bridge of the nose corresponds to the liver and gallbladder. The yellowish face and chloasma in the middle of the nose are mostly related to liver qi stagnation, emotional disorders or mental stress, suggesting that the liver is out of circulation and the liver and gallbladder are stagnant. 4. Growing in the two cheekbones: The central part of the two cheekbones is the part where the small intestine meridian flows, the outer part of the two cheekbones is the corresponding area of the kidney, and the upper part is the part where the Sanjiao meridian flows. Chloasma in the cheekbone area is mostly accompanied by shortness of breath, weakness, panic, chest tightness, reduced digestive function, and even loss of appetite, bloating, diarrhea and other symptoms, which are manifestations of weakened digestive system and heart function. Chloasma or age spots on both cheekbones to the front and above the ears indicate deficiency of kidney qi, poor qi flow in the three jiao, and disorders of lipid metabolism. 5. Long spots on the upper lip: The upper lip is the circulation part of the large intestine meridian, which corresponds to the genitourinary organs. Long chloasma here is a sign of kidney qi deficiency and cold colon deficiency, often accompanied by constipation, menstrual disorders and other symptoms, and should be alert to uterine and ovarian disorders. 6.Long on the outer side of the jaw: The outer side of the jaw corresponds to the lower limbs, stomach meridian, large intestine meridian and small intestine meridian. Chloasma in this area indicates poor blood circulation in the lower extremities and is a sign of spleen and kidney deficiency, often with soreness in the lower extremities, weakness in the waist and knees, coldness in the hands and feet, and weakened digestive function.