Enlarged Kidney And Bladder In Unborn Baby. These two ureters can drain independently into the bladder or connect and drain as a single ureter into the bladder. Children with a duplex kidney also called a duplicated collecting system have two ureters coming from a single kidney.
In a normal urinary tract each kidney is connected to one ureter a tube that drains urine into the bladder. Hydronephrosis may occur in 1 out of every 100 babies. Urine flows from the kidneys through the ureters into the bladder.
The first is an obstruction of the urine flow in the urethra or kidney.
Bulge in the ureter the ureters the pair of tubes running between the kidneys and the bladder may develop an abnormality that results in blockage of the flow of urine. The second cause is reflux which occurs when the urine does flow out of the kidney and then back up into the kidney. Some of the common blocks are neurogenic bladder ureterocele ureterovesical junction obstruction uvj ureteropelvic junction obstruction upj and posterior urethral valves. There are two things that cause enlarged kidney.