Pes planus is common in children. Although it rarely leads to disability, it is still a major concern for parents and is a common cause of clinic visits for pediatric foot problems. Most pediatric pes planus cases are characterized by a normal arch during non-weight bearing, and a flattening of the arch on standing. They are often painless, non-problematic, and resolve by adolescence. The current evidence suggests that it is safe and appropriate to simply observe an asymptomatic child with flexible pes planus.
Sources:
Carr JB 2nd, et al. Pediatric Pes Planus: A State-of-the-Art Review. Pediatrics. 2016 Mar;137(3):e20151230. PMID: 26908688.
Halabchi F, et al. Pediatric flexible flatfoot; clinical aspects and algorithmic approach. Iran J Pediatr. 2013;23:247-60. PMID: 23795246.