Fetal arterial conduit travels in a tortuous way mostly without effect, but if in utero it suggests arterial conduit stenosis, it has an effect. The ductus arteriosus is a blood vessel that is present during infancy and closes shortly after birth. If the ductus arteriosus is tortuous during fetal life, it will not affect the growth and development of the fetus if it does not affect the blood supply to the fetus. However, if the arterial ducts of the fetus are tortuous along with stenosis, it will result in less blood flow to the lungs of the fetus. The narrowing of the arterial ducts will prevent the blood from the pulmonary artery from flowing into the aorta, which may result in increased pressure in the pulmonary artery, leading to obstruction of the circulation of the fetus and the occurrence of hypoxia. If a pregnant woman discovers a tortuous alignment of the fetal arteries during a labor and delivery examination, regular labor and delivery examinations and rechecks are recommended.