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Duplex congenital malformations of the urinary tract

I want to know about ureterocele

This page explains ureterocele, a condition where a part of the tube that carries urine to the bladder is swollen. Learn about symptoms and treatment options in easy-to-understand language.

Possible treatments

Wait and see: ureteroceleAntibiotics for ureteroceleSurgery for ureterocele

Ureteroceles can cause urine to collect in the balloon-like structure, which can trigger problematic symptoms. 

Not all children with ureterocele experience symptoms and in some cases, the condition is only found when a child is undergoing medical scans or urinary tests later in life.

Urinary Tract Infections (UTIs)

When a ureterocele causes a bulge that holds urine, the urine can sit there too long. This makes it easier for bacteria to grow and cause an infection. This can lead to a urinary tract infection (UTI). The most common sign of a UTI in young children is a high fever. Young infants and toddlers may not show specific UTI symptoms such as pain when weeing, and instead may be irritable or have trouble feeding. Children over the age of 6 may need to pee a lot, have cloudy or bad-smelling urine, or feel pain or an upset feeling in their belly. They are more likely to be able to describe their symptoms. 

Needing to pee often or very suddenly / Trouble fully emptying the bladder

When a ureterocele blocks the normal flow of urine, it can lead to a backup of urine in the kidney, causing irritation and inflammation. This makes the bladder contract (squeeze) more often. That’s why children with a ureterocele might feel like they have to wee often and urgently. They might try to pee more often to feel better and relieve the pressure or pain.

Haematuria

Haematuria is the medical term for blood in the urine. This symptom is extremely rare in childhood. 

In children with a ureterocele, the bulge blocks the normal flow of urine through the ureter, causing urine to get stuck in the ureter or kidney. This can cause swelling, inflammation (irritation), and bleeding. The increased pressure in the urinary system can make the blood vessels break, which can be another cause of the blood in the urine.

This chapter contains general information about congenital malformations of the urinary tract. If you have any specific questions you should consult your doctor or other professional healthcare provider. No website or leaflet can replace a personal conversation with your doctor.

Last updated: May 2025

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