Urine infections are fairly common in children. About 8% of children may have a urine infection and generally girls are more frequently affected than boys. It is an infection that can affect any part of your child’s urinary tract (waterworks). Its symptoms depend on which part of the urinary tract is affected but the most common are: burning sensation when passing urine (dysuria), blood in the urine (Haematuria), smelly or cloudy urine, abdominal pain, back or loin pain, fever, wetting. Some young children can get very unwell with a urine infection and may develop a febrile convulsion with it.