The chances of polyps in children are very small, but if a polyp is found to have formed in the nasal cavity after examination, it can often be treated conservatively with medication on a temporary basis. If the patient is an adult, then removal can be considered, probably after the age of 18. However, in some children, polyps in the nasal cavity may be so large that they completely block the nostrils bilaterally, in which case timely removal is recommended. If the nasal polyps are very large, it will affect the child’s ventilation, and if the child is often deprived of oxygen, the child’s intelligence may be affected, delaying the child’s learning and growth. But relatively speaking, the removal may have a certain chance of recurrence, because the child’s nasal cavity is not completely grown and completed. So the removal may not be so complete to avoid damage to other parts of the child’s nasal cavity, so parents must be psychologically prepared.