Blistering from cupping may be related to factors such as too long cupping time, too high cupping temperature and too high skin tension. It should be noted that when cupping must pay attention to go to the regular hospital for treatment, can not be blindly operated at home, so as not to cause scalding and burns on the skin, but is not conducive to the maintenance of human health. 1. Cupping time is too long: If cupping time is too long, it may lead to capillary rupture on the skin surface, and blisters will form on the skin surface. 2. Cupping temperature is too high: the temperature of cupping is too high, which may burn the skin, and the oozing of tissue fluid is too much, which may also lead to blistering on the surface of the skin. 3. Excessive skin tension: excessive pressure inside the cupping tank and elevated skin tension can lead to the formation of tension blisters.