The causes of single umbilical artery may be related to chromosomal abnormalities, abnormal development of the umbilical artery during the embryonic period, and blood clots.
Single umbilical artery is an abnormal embryonic condition in clinical pregnancy and obstetric examination. Generally, a normal fetus has two umbilical arteries, while a fetus with single umbilical artery has only one umbilical artery, which will enhance the probability of congenital heart disease and preterm delivery to a certain extent.
1. Chromosomal abnormality: the cause of single umbilical artery may be related to the combination of chromosomes on both sides or family inheritance.
2. Abnormal development of umbilical artery in embryonic stage: In the early stage of fetal development, the single umbilical artery of the embryo may be atrophied due to nutritional deficiencies, etc., which may gradually be relieved in the later stage.
3. Blood clots: Blood clots may increase the probability of umbilical artery atrophy in the body, which develops into single umbilical artery in the long run.
Single umbilical artery may also have other causes, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease and then give targeted treatment or treatment to avoid delay.