After cupping, the pigmentation reaction of the jar is as follows: 1, the jar is purple and dark: generally indicates insufficient blood supply, poor menstrual flow and blood stasis. 2, the jar issued purple and accompanied by plaque: generally indicates cold clotting blood stasis. 3, the jar mark is scattered purple dots, and the depth is one, indicating Qi stagnation and blood stagnation. 4, the jar mark is bright red and bright: generally indicates Yin deficiency, Qi and blood deficiency or Yin deficiency fire. 5, the jar mark red and dark: indicates high blood lipids, and heat evil. 6, the jar seal gray, touch and not warm, mostly cold or dampness. 7, the surface of the jar mark with skin lines or slightly itchy: indicates wind or dampness. 8, there is watery inside the tank: indicates that there is dampness in the area. 9, the jar seal appears blisters, indicating heavy dampness in the body, if there is blood inside the blisters, it is the reaction of dampness and heat toxicity.