Thank you for your query,
Nothing to worry as your child is asymptomatic.
Cloudy urine may be due to concentrated urine.
But give plenty of water and oral fluids to improve the hydration and urine output.
Just a routine complete urine examination will rule out any urine infection or any abnormality.
Consult your Pediatrician
for the examination and urine investigation to rule out the infection.
Hope I have answered your query.