Unilateral hydronephrosis

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X
• Y
• Z

Female urinary tract

Male urinary tract

Unilateral hydronephrosis is swelling of one kidney due to a backup of urine.

See also:  Bilateral hydronephrosis

Hydronephrosis

Hydronephrosis is a condition that occurs with a disease and is not a disease itself. Treatment and prognosis for unilateral hydronephrosis depend what is causing the kidney swelling.

Conditions that are often associated with unilateral hydronephrosis include:

• Acute unilateral obstructive uropathy
• Chronic unilateral obstructive uropathy
• Vesicoureteric reflux (backflow of urine from bladder to kidney)
• Nephrolithiasis (kidney stones)
• Hydronephrosis that occurs without a known cause during pregnancy

Unilateral hydronephrosis occurs in approximately 1 in 100 people.

Review Date: 05/10/2006
Reviewed By: Neil D. Sherman, MD, Urologist, Essex County, NJ. Review provided by VeriMed Healthcare Network.