Already a member? Sign in
Welcome to Inspire!
What - Inspire is a place where you can connect with people who share your health concerns and find information and advice in groups sponsored by organizations you know and trust.
Why - As a member you can use Inspire to let friends and family know how you're doing, contact others who share your health concerns, receive personalized updates and information about participating in surveys and clinical trials, and more.
How - Joining Inspire is completely free and usually takes less than a minute. Join now!
Ureteropelvic junction (UPJ) obstruction support groups
Suggest a new group
Ureteropelvic junction (UPJ) obstruction
Ureteropelvic junction (UPJ) obstruction is a blockage in the area that connects the renal pelvis (part of the kidney) to one of the tubes (ureters) that move urine to the bladder.UPJ obstruction generally occurs when a baby is still growing in the womb. This is called a congenital condition (present from birth). Most of the time, the blockage is caused when the connection between the ureter and the renal pelvis narrows. This causes urine to build up, damaging the kidney.
The condition can also be caused when a blood vessel is located in the wrong position over the ureter. In older children and adults, UPJ obstruction can be due to scar tissue, infection, previous treatments for a blockage, or kidney stones.