Urine infections occur when microorganisms, usually bacteria, enter the urinary tract and remain long enough to cause inflammation and other problems.
Urine infections can occur in infants and they are more common in infant boys than in infant girls.
The symptoms usually associated with a urine infection depend on the age of the child. Infants and very young children may have fever, fussiness, decreased activity, decreased appetite or just a general change in behavior. Of course, these same symptoms could be caused by an ear infection, a viral illness or other diseases. That's why an infant with any of the above symptoms should be tested to see if a urine infection or any other type of infection is present. Sometimes a urine infection will cause blood to appear in the urine.