What does pregnancy subchorionic hemorrhage mean?

Pregnancy after subchorionic hemorrhage, first consider embryo abortion, threatened abortion or combined with autoimmune diseases caused. Pregnancy under the chorionic hemorrhage, the main location is uterine bleeding outside the gestational sac. The causes of this situation are generally seen in poor embryo quality, abnormal embryo chromosomes, poor endometrial receptivity, poor villi implantation, or autoimmune diseases, such as systemic lupus erythematosus, rheumatoid arthritis and other diseases, but also prone to subchorionic hemorrhage, after this happens, we must pay attention to observation, if necessary, the application of drugs to prevent abortion, even incomplete abortion.