Hi Mam. First of I presume it is bubbles in urine not bubbles in body as typed by you. Are there bubbles in urine WHILE passing or AFTER it falls into the toilet?
If it is while passing urine then it may be normal or sometimes indicate infection or passing protein in urine or sometimes dehydration. If after passing urine it is Foamy then it may be due to passing urine forcefully or due to chemicals in toilet seat.
. Urine examination in a reliable lab will give clues if infection or protein in urine.
Next Steps
Kindly observe how urine is coming based on above points I said
Health Tips
Repeat a urine routine and see a nearby Pediatrician or Pediatric Nephrologist