There is no known prevention for this condition. However, if UPJ is due to a kidney stone, it may be helpful for a person to drink plenty of fluids.
Chronic obstruction can lead to the gradual loss of kidney function. Urinary tract infections are common with UPJ. They can be serious when this condition is present. Also, kidney stones are prone to form in the urine that collects in the urinary tract when there is a blockage.
There are no risks to others, as UPJ obstruction is not contagious.