What makes ureter dilate

Ureteral dilatation may be caused by congenital abnormalities, ureteritis, ureteral stones and other reasons.

1. Congenital

abnormalities in embryonic ureteral development can lead to ureteral dilatation, common are giant ureter, fetal alcohol syndrome, children with giant bladder-giant ureter syndrome, etc.

2. Ureteral inflammation

Ureteral inflammation is an inflammatory reaction that occurs in the ureter. Inflammatory factors can stimulate the inner wall of the ureter to secrete inflammatory secretions. A large number of secretions accumulate in the ureter lumen, which can cause ureteral obstruction and then ureteral dilatation.

3. Ureteral stones

If the stone volume is large, it can also cause ureteral obstruction and lead to ureteral dilatation.