Chinese medicine cupping has quietly entered people’s lives, both in hospital treatment and in home health care. However, many people only know about cupping and do not know why. In fact, the mark left after cupping is a language that conveys where the body’s disease is located. If the cupping marks are purple-black and dark, it generally indicates that the body has blood stagnation, such as poor menstruation, dysmenorrhea or insufficient blood supply to the heart, etc. Of course, if the affected area is heavily affected by cold, the purple-black and dark marks will also appear. If the mark does not subside for several days, it often indicates that the disease has been in progress for a long time and needs to be treated for a longer period of time. If a large area of black and purple marks appear in the jar, it indicates that the wind and cold are very large and should be treated symptomatically to expel the cold and remove the evil. If the jar is purple with plaques, it generally indicates cold and blood stasis. Scattered purple dots with varying shades of the jar mark generally indicate evidence of Qi stagnation and blood stasis. The light purple and greenish color with plaques generally indicates deficiency and blood stasis, such as at the kidney point, which indicates kidney deficiency, and at the spleen point, which indicates qi deficiency and blood stasis. This point is often accompanied by pressure pain. A bright red and colorful jar mark generally indicates yin deficiency and qi-yin deficiency. Yin deficiency and fire can also appear in this mark. The can mark is bright red and scattered, usually appearing after a large area of canning, and is not higher than the skin. If it is concentrated in and around an acupuncture point, it indicates the presence of disease and evil in the internal organs where the point is located. A grayish can mark, which is not warm to the touch, is mostly cold and damp. The surface of the jar mark has lines and is slightly itchy, indicating wind and dampness. Water vapor inside the cupping body indicates the presence of dampness in the area. The appearance of blisters in the cupping area and excessive edema and water vapor reveal that the person is suffering from Qi evidence. The appearance of deep red, purple-black or tansy, or slight pain when touched along with body fever, indicates heat and toxicity evidence, while those without body fever indicate silt evidence. If the skin color remains unchanged and is not warm to the touch, it suggests deficiency. If there is no can mark after suction, or if there is one, but it disappears immediately after opening the can and returns to its normal color, it indicates that the disease is still mild. Of course, if you do not get the right point, you will also draw without a can mark. You should not take one time as the criterion, you should cupping several times to confirm whether there are symptoms.