In the case of twins, the birth of the third child is accompanied by certain risks. Because twins are a high-risk pregnancy, the uterus can be extremely dilated, which can lead to poor uterine recovery after delivery, causing the possibility of heavy bleeding. During pregnancy, there are many complications, such as gestational hypertension syndrome, which may occur or gestational diabetes mellitus. It is recommended to go to the hospital for regular checkups during pregnancy, and to have them done at the high-risk clinic. If abnormalities are found, they should be treated promptly, and it is also recommended that twins be delivered by cesarean section.