The color of menstruation during normal menstruation in women is dark red and without clots. When blood clots appear it is mostly due to more endometrial exfoliation in women, accompanied by more blood discharge, which clots at the cervical opening and large blood clots are found in the menstrual blood on the third day of menstruation. If the menstrual flow is normal, large blood clots may be caused by women who do not pay attention to keeping their abdomen warm in daily life or often eat cold foods, resulting in the appearance of mild uterine cold. Once the blood clot appears, it will affect the woman’s uterus and cause severe contractions, causing severe pain. Take motherwort granules in time to activate the blood and remove blood stasis, and pay attention to abdominal warmth to increase the temperature of the abdomen, which can relieve the pain and discomfort. During menstruation the body resistance is weak, pay attention to rest, while strengthening nutrition and vulva care.