A normal newborn's umbilical cord contains three blood vessels: two arteries and one vein. The veins in the umbilical cord carry oxygenated, nutrient-rich blood to the fetus, while the arteries in the umbilical cord carry oxygenated blood, unwanted waste products (such as carbon dioxide), and nutrient-depleted blood back to the placenta and mother's bloodstream.

When the mother eats, food goes down the esophagus. In the stomach, the food is broken down into glucose, fat, and protein. After digestion, the food is absorbed into the bloodstream and passed from mother to baby through the placenta.

Surgical treatment of urachal cysts in young children is usually simple and highly effective. If left untreated, some lesions of the urachal canal may develop into malignancy later.

Children with diseases caused by the presence of the urachus will have a high risk of developing inflammatory diseases and malignant lesions if not treated early.