Non-lactating mastitis is not caused by bacterial infection, but usually accompanied by bacterial infection, there will be local abscess formation, but simply line incision and drainage is very difficult to cure, as shown in Figure 1 example, the arrow points to the incision 3 months ago, 3 months after the recurrence of a hospital again incision and drainage is still incurable; Figure 2 example, the patient was a hospital cut a lot of pus drainage, 3 months can not be cured. The reason is that there are necrotic granulomas inside the formation of tissue, the image is like a “rotten pear”, must be removed in order to cure.