Early pregnancy black vaginal discharge, it is likely to be a small amount of bleeding caused by preeclampsia, if the bleeding is small and not discharged in a timely manner will become darker in color, discharged through the vagina mixed with the secretion is black. The first thing you need to do is to check the situation in the early stages of pregnancy, such as gynecological ultrasound to check the situation of the gestational sac in the uterine cavity, to see if there is any obvious bleeding around the sac, and at the same time, you need to check the level of progesterone by blood sampling, as well as the level of human chorionic gonadotropin, to find out whether it is within the normal range. If symptoms of preeclampsia are present, there will be a black vaginal discharge. You can take dextroprogesterone or progesterone injections to protect the fetus, and at the same time, you need to pay attention to rest, do not exercise strenuously, prohibit sexual intercourse in early pregnancy, and eat a light diet, easy to digest food, eat protein-rich food, as well as fresh vegetables and fruits.