How does cupping achieve the effect of losing weight?

Cupping to lose weight: 1. Bamboo pot: take mature bamboo with hard texture and saw it into a bamboo tube with a joint at one end, which is 8~ 10cm long. Then peel off the skin and polish the smooth inner wall and nozzle of the bamboo tube. The advantages of bamboo pot are light, durable, not easy to break, easy to obtain materials, simple to make and cheap. The disadvantage is that the iron leaks. 2. Ceramic pot: made of clay, with a small mouth bottom and a large middle, like a waist drum. Apply black glaze or yellow glaze. Suitable for fire exhaust. The advantages of ceramic cans are low price and large suction force. The disadvantage is that the pot is heavy and easily broken. Precautions for cupping to lose weight: Hunger, satiety, overwork, thirst, high fever, high edema, high tension, high skin allergy, skin injury, poor skin elasticity, serious skin diseases, tumors, hemophilia, active pulmonary tuberculosis, menstrual period and pregnancy patients are prohibited or used with caution.