The brown color of menstruation with black blood clots is caused by blood stasis, you can take some medicines under the guidance of the doctor with the effect of blood circulation and eliminate blood stasis to regulate, take some motherwort, safflower free tablets, blood by blood stasis oral solution to regulate. Motherwort: it can be used to regulate menstruation by activating blood circulation, and is used for menstrual bleeding and blood clots caused by stagnation of qi and blood stasis. When using this product, note that it is contraindicated in cases of deficiency of yin and blood, excessive menstruation and dilated pupils. Avoid iron. Use with caution for pregnant women. Safflower Easy Tablet: Effective in soothing the liver, regulating Qi and promoting blood circulation. It is used for menstrual irregularities, blood clots, breast distension and pain caused by liver qi discomfort. It is recommended to start taking the medicine 1 week before menstruation and stop before menstruation to help discharge blood stasis, contraindicated in pregnant women. Hematopoietic Oral Liquid: Effective in promoting blood circulation and removing blood stasis, promoting circulation of Qi and relieving pain. It can be used for headache or chest pain due to internal obstruction of blood stasis. It is recommended to start taking the medicine 1 week before menstruation and stop before menstruation to help discharge the blood stasis, and the adverse reactions and contraindications of this product are not clear. Usually pay attention to rest, eat less cold and spicy food, drink more brown sugar ginger tea, pay attention to keep warm. If you need to use medication, it is recommended to use it under the guidance of a traditional Chinese medicine practitioner, unauthorized use of medication may cause adverse consequences.