Introduction
Twin pregnancy refers to a rare form of multiple pregnancy in which a woman carries two embryos at the same time. This type of pregnancy occurs in approximately 0.5 - 1% of women, but cases of bilateral twinning are significantly less common than bigemenal pregnancies. Double pregnancy carries an increased risk for the mother and fetuses, but this does not mean that it should be excluded from future pregnancies. For now, women with a big-gemen pregnancy can expect to give birth to two different babies at the same time, using both labor and delivery by cesarean section. The advantages of bigamian birth and the use of cesarean section, as well as modern methods of multiple pregnancy, lead to improved child survival and reduced morbidity, leading to low child mortality. In addition, biheme children usually have a higher survival rate due to