Black menstruation for the first time after abortion is an abnormal phenomenon, which is mainly related to the coldness in the uterus and chronic inflammation, such as endometritis, which can lead to dark menstrual flow and abdominal pain. If you have blood clots in your menstrual period, you can take appropriate oral medication to regulate it, such as oral motherwort granules. If you eat cold food after abortion, it will also cause dark menstrual flow during menstruation, which can be treated with hot compresses on the abdomen and gynecological drugs. Normally, you should pay attention to the cleanliness of the vulva, wash it every day, and go to the hospital regularly for gynecological ultrasound and gynecological examination.