A to Z: Hydronephrosisenparentshttps://kidshealth.org/EN/images/headers/P-khAZDictionary-enHD-AR1.jpgLearn more about hydronephrosis (swollen kidney) in children.hydronephrosis in kids, hydronephrosis in infant, hydronephrosis in toddler, hydronephrosis in preschooler, hydronephrosis in tween, hydronephrosis in teen, swollen kidney in child09/06/201204/04/201909/02/20198febcc41-a663-4149-9c92-5e4f12a3fce5https://kidshealth.org/ws/RadyChildrens/en/parents/az-hydronephrosis.html/<p><em>May also be called: Unilateral Hydronephrosis; Bilateral Hydronephrosis; Urinary Obstruction; Swollen Kidneys</em></p> <p>Hydronephrosis (hi-dro-ne-FRO-sis) is when one or both <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/kidneys-urinary.html/">kidneys</a> become enlarged because the flow of urine (pee) is backed up or blocked.</p> <h3>More to Know</h3> <p>Normally, urine flows from the kidneys to the bladder through thin tubes called ureters. But some conditions and obstructions in the urinary tract can block the normal flow of urine or reverse the urine flow. This can cause a buildup of urine in the kidney, leading to hydronephrosis, or swelling of the kidneys. Hydronephrosis can sometimes be diagnosed before a baby is born on <a href="https://kidshealth.org/ws/RadyChildrens/en/parents/prenatal-tests.html/">prenatal</a> ultrasound.</p> <p>Hydronephrosis may lead to a urinary tract infection or cause pain in the abdomen. The two main causes of hydronephrosis include blockage of urine flow (which can occur at different points in the urinary tract) and urine reflux (a reversal of urine flow).</p> <h3>Keep in Mind</h3> <p>Many times, hydronephrosis resolves on its own without treatment. However, if treatment is needed, most causes of hydronephrosis can be resolved with medications or minor surgery.</p> <p><em>All A to Z dictionary entries are regularly reviewed by KidsHealth medical experts.</em></p>
Kidneys and Urinary TractThe kidneys perform several functions that are essential to health, the most important of which are to filter blood and produce urine.https://kidshealth.org/ws/RadyChildrens/en/teens/kidneys.html/d0d97a22-7118-4082-acae-02dd5319be95
Movie: Urinary SystemWatch this movie about the urinary system, which produces pee.https://kidshealth.org/ws/RadyChildrens/en/kids/usmovie.html/9383ee79-0d68-4e64-ab41-0680cdcac139
Ultrasound: BladderDoctors order bladder ultrasounds when there's a concern about bladder problems, such as difficulty urinating or daytime wetting.https://kidshealth.org/ws/RadyChildrens/en/parents/ultrasound-bladder.html/62b31da4-cda0-493f-a393-338578c464d9
Ultrasound: Renal (Kidneys, Ureters, Bladder)A renal ultrasound makes images of your child's kidneys, ureters, and bladder. Doctors may order this test if they suspect kidney damage, cysts, tumors, kidney stones, or complications from urinary tract infections.https://kidshealth.org/ws/RadyChildrens/en/parents/renal-ultrasound.html/05b3083e-733a-40c6-9fd9-5a38877ccc4f
Urinary Tract InfectionsA urinary tract infection (UTI) is one of the most common reasons that teens visit a doctor. Learn about the symptoms of UTIs, how they're treated, and more in this article.https://kidshealth.org/ws/RadyChildrens/en/teens/uti.html/a97f6174-4629-4696-b5bc-a461856cdd95
Urinary Tract Infections (UTIs)Urinary tract infections (UTIs) are common in kids. They're easy to treat and usually clear up in a week or so.https://kidshealth.org/ws/RadyChildrens/en/parents/urinary.html/6a6f9f52-f903-4360-877f-dd35d531d84f
Your KidneysYou need at least one kidney to live. Find out why in this article for kids.https://kidshealth.org/ws/RadyChildrens/en/kids/kidneys.html/e8b731bd-422b-4032-952a-5f2223257f23
Your Urinary SystemYou pee every day, but what makes it happen? Find out in this article for kids about the urinary system.https://kidshealth.org/ws/RadyChildrens/en/kids/pee.html/6715ddc0-cd8e-428a-afd4-e3e3db22267f
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