Surgical decision depends on many factors. If you have tried with medicine for long time and failed to see any improvement think about surgical removal. If your child snores every night, if he has suffered from ear infections, if he is having severe breathing difficulty through nose it's better to get it done.
Next Steps
Meet ENT surgeon.
Health Tips
Ask your doctor which technology he ir she will use to remove tonsil/ adenoid. Whether cold steel/ diathermy or Coblation? Each has its own advantage and disadvantages.Duscuss about surgical complications as well. And take decision wisely.