Hydronephrosis
Read about hydronephrosis, a condition where one or both kidneys become stretched and swollen as a result of a build-up of urine inside them.
Read about some of the main causes of hydronephrosis in adults and babies, including kidney stones, an enlarged prostate and pregnancy.
Read about the tests used to diagnose hydronephrosis in adults, children and babies.
Read about the main treatments for hydronephrosis, including how the condition is monitored and whether surgery may be needed.