Keloid pregnancy is reviewed with a transvaginal ultrasound. Keloid pregnancy is a kind of ectopic pregnancy in which the fertilized egg is deposited in the scar of the previous uterine incision. It may be caused by poor healing of the uterine incision, wide scar, etc. It can cause irregular vaginal bleeding. It is mainly diagnosed by transvaginal ultrasonography, which can clarify the location of embryo implantation, myometrial continuity of the anterior wall of the uterus, and blood flow signals at the scar. Scarred pregnancy increases complications such as hemorrhage, uterine rupture, and placental implantation, so prompt termination of pregnancy is recommended after definitive diagnosis, either by medication (e.g., methotrexate) or surgical methods under the guidance of a physician. For those who insist on requesting the continuation of pregnancy after being fully informed of the risks of continuing the pregnancy, pregnancy management should be strengthened and the pregnancy should be terminated promptly in the event of complications.