https://www.stellarmr.com/report/ureteral-obstruction-market/2614 A Ureteral Obstruction is a blockage in one or both of the tubes (ureters) that carry urine from the kidneys to the bladder. Ureteral obstruction may be cured. However, if it's not treated, signs and symptoms quick pass from mild ache, fever and contamination to extreme lack of kidney characteristic.