Vaginal bleeding on the third day after the abortion, which is relatively bright red in color, may be due to bleeding caused by residual uterine cavity, prolonged lying down or unrepaired endometrium. If the bleeding is not heavy and there are no other conditions, you can observe it first. If the bleeding is heavy and has exceeded the normal menstrual volume, you must go to the hospital for examination to understand the condition of the uterine cavity in time for symptomatic treatment. Common causes and treatment 1. Uterine cavity residue: There are tissues, meconium or fetal sacs in the uterine cavity that are not completely scraped clean, resulting in vaginal bleeding with bright red color. You can take some drugs that activate blood circulation and remove blood stasis to promote the discharge of uterine cavity residues, such as new biochemical granules. If there are more residues and the medicine cannot be relieved, it is necessary to go to the hospital in time for the cleaning operation; 2. Long time lying still: If you lie in bed for a long time after the abortion and do not have proper activities on the ground, the blood in the uterine cavity will flow out by gravity during the action, which is a normal phenomenon. If the amount of bleeding is more, you need to see a doctor for hemostatic treatment; 3, the endometrium is not repaired: abortion surgery because of stimulation to the endometrium, so that it fails to recover in time. It is recommended to observe first and take some medicines that promote uterine contraction, such as motherwort, as appropriate. If you still bleed for more than five days, you need to go to the hospital for examination. Precautions 1, appropriate activities: appropriate bed activity is needed after abortion to facilitate the discharge of blood in the uterine cavity; 2, dietary adjustment: prohibit the consumption of cold, spicy and stimulating food, because spicy and stimulating food may activate the blood, resulting in increased bleeding; 3, keep clean: pay attention to local hygiene and cleanliness, adhere to wash the perineum 1-3 times a day to prevent the appearance of infection caused by external bacteria entering the body. In addition, timely replacement of sanitary napkins and avoid sexual intercourse for a month.