Normal menstruation is dark red in color with no blood clots. The presence of blood clots in menstruation may have menstrual irregularities, can be appropriate supplementation of estrogen and progesterone, under the guidance of the doctor to take progesterone, clomiphene and so on. Blood clots in menstruation may have uterine cold, uterine cold will cause stagnation of qi and blood stasis, menstruation is prone to blood clots, accompanied by dysmenorrhea, you can take motherwort, warm uterus and pregnancy pills, wuji baifeng pill and so on. A small amount of blood clots during menstruation is normal, because the endometrium is shedding, if the blood clots are more, it is necessary to have a timely examination to avoid the existence of endometrial infection. You can drink some brown sugar water, brown sugar has the effect of activating blood circulation and removing blood stasis, which can improve this phenomenon. In normal times, we should pay attention to keep warm, increase clothing in time, avoid the small abdomen cold. Menstruation can also be affected by emotions, usually adjust the routine, keep a calm mind.