There are many possible causes for the pain in the right lower abdomen with bleeding. For example, when there are some adnexal cysts or even corpus luteum cysts, it may cause pain in the lower right abdomen, and even when there are some ruptured corpus luteum cysts, it may also cause severe pain and even bleeding. This time it is recommended to go to the hospital for a gynecological ultrasound examination to rule out the presence of adnexal cysts, including the rupture of the corpus luteum cysts, according to the situation can be treated symptomatically. For example, pain and bleeding in the lower right abdomen can also be caused by ectopic pregnancy. When an ectopic pregnancy occurs, there may also be pain on one side of the abdomen, which may even be accompanied by bleeding. It is recommended to go to the hospital for a blood test for chorionic gonadotropin and a gynecologic ultrasound to rule out any abdominal masses and any tendency for chorionic gonadotropin to increase. If the pregnancy is ectopic, hospitalization will be required at this time.