Moxibustion is mainly used to support Yang, eliminate stasis and disperse nodules, prevent disease and health care and warm the meridians. There are several possible reasons for the vague pain in the abdomen after moxibustion. Whether there is fluid accumulation in the abdominal pelvis, which requires ultrasound examination, or whether the moxibustion time is too long can also cause vague pain in the small abdomen, or whether there is accumulation, and vague pain can occur during the treatment of warming the meridians and meridians. There are physiological reasons, or reasons during treatment. If there is frequent vague pain to do ultrasound to confirm whether there is fluid in the pelvis, or whether there are other organic problems appear, check before continuing, and judge whether to continue moxibustion according to the condition.