Vaginal bleeding on the third day after abortion, which is bright red in color, may be due to bleeding caused by uterine residue, prolonged immobilization, or unrepaired uterine lining. If the bleeding is not heavy and there is no other condition, you can observe it first. If the bleeding is heavy and has exceeded the normal amount of menstruation, you must go to the hospital for examination, timely understanding of the condition of the uterine cavity and symptomatic treatment. Common causes and treatment 1, uterine residue: there is tissue, meconium or fetal sac in the uterine cavity is not completely scraped clean, resulting in vaginal bleeding, bright red color. You can take some medicines that activate blood circulation and remove blood stasis to promote the discharge of uterine residues, such as new biochemical granules. If the residue is more, the medicine can not be relieved, you need to go to the hospital in time to carry out the purging surgery; 2, lying down for a long time: if you lie down for a long time in bed after abortion, there is no proper downward movement, the blood in the uterine cavity when the action will be subject to the effect of gravity and flow out, it is a normal phenomenon. If the bleeding is heavy, you need to seek medical treatment to stop bleeding; 3, the endometrium has not been repaired: abortion surgery because of the stimulation of 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. If there is still bleeding for more than five days, you need to go to the hospital for examination. Precautions 1, appropriate activities: after abortion need to get out of bed appropriately, conducive to the discharge of blood in the uterine cavity; 2, dietary adjustments: fasting cold, spicy stimulating food, because spicy stimulating food may activate the blood, resulting in increased bleeding; 3, keep clean: pay attention to the local hygiene and cleanliness, and adhere to the perineal area 1-3 times a day to wash, to prevent external bacteria from entering the human body caused by the emergence of infections. In addition, timely replacement of sanitary napkins, avoid sexual intercourse within one month.