It is possible that moxibustion may cause early menstruation. Moxibustion uses moxa products to stimulate acupuncture points to warm the menstruation and disperse cold, invigorate blood circulation and remove blood stasis, which usually has little effect on menstruation, but a few people may experience early or delayed menstruation, usually not more than one week. As moxibustion has the effect of invigorating the blood and stimulating the acupuncture points, it can also cause some hormonal changes in the body, so some people may experience slightly early menstruation after moxibustion. If your period is too early, you need to stop doing moxibustion and pay attention to rest and warmth during your period, usually the next period can return to normal on its own.