Medically reviewed by Dr. Tom Biernacki, DPM — Board-Certified Podiatric Surgeon — Balance Foot & Ankle, Howell & Bloomfield Hills, MI. Last updated April 2026.

Flatfoot is the most common finding on pediatric foot examination, identified in up to 44% of children ages 3–6, declining to 24% by age 10 as physiological arch development occurs. The central challenge in managing pediatric flatfoot is distinguishing the overwhelming majority of children with normal flexible flatfoot — who require no treatment — from the small minority with a pathological condition that warrants intervention.

Normal Development and Flexible Flatfoot

Physiological arch development: all infants are born with plantar fat pads that flatten the apparent arch. The medial longitudinal arch develops progressively from ages 3–10 as the plantar intrinsic musculature strengthens and the tarsal bones complete ossification. By age 6, 77% of children who had flatfoot at age 2 have developed a normal arch. Flexible flatfoot — the arch is visible on tiptoe and when non-weight-bearing but disappears with weight-bearing — is a normal developmental finding. Flexible flatfoot does not cause pain, does not progress to adult pathological flatfoot, and does not require orthotics, shoe modifications, or exercises in asymptomatic children. The evidence base for orthotic treatment of asymptomatic pediatric flatfoot is uniformly negative — randomized trials demonstrate no effect on arch development or symptom prevention.

When to Treat and When to Operate

Symptomatic flexible flatfoot: if a child has medial arch or heel pain limiting activity, custom UCBL orthotics provide comfortable support and pain relief — the goal is symptom management, not arch correction. Pathological flatfoot requiring evaluation: rigid flatfoot that does not correct on tiptoe (tarsal coalition — the most important diagnosis to exclude), vertical talus (convex plantar surface with rigid talonavicular dislocation), and skew foot (forefoot abduction with hindfoot varus). Surgical indications for pediatric flatfoot: tarsal coalition resection (if causing pain and failing conservative management); calcaneal lengthening osteotomy for severe flexible flatfoot with pain and functional limitation failing prolonged conservative management (typically deferred until age 8–10 for adequate bone stock). Dr. Biernacki at Balance Foot & Ankle evaluates pediatric flatfoot with weight-bearing assessment and X-rays when indicated, providing evidence-based guidance that avoids unnecessary treatment for developmental variants. Call (810) 206-1402 at our Bloomfield Hills or Howell office.

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When to See a Podiatrist

Many foot conditions can be managed conservatively at home, but some require professional evaluation. See a podiatrist promptly if you experience:

• Pain that persists for more than 2 weeks despite rest
• Swelling, redness, or warmth that isn’t improving
• Numbness, tingling, or burning in the feet
• A wound or sore that is not healing within 2 weeks
• Any foot concern if you have diabetes or poor circulation
• Nail changes that suggest fungal infection or other problems

At Balance Foot & Ankle, our three board-certified podiatrists — Dr. Tom Biernacki, Dr. Carl Jay, and Dr. Daria Gutkin — provide comprehensive foot and ankle care at our Howell and Bloomfield Township offices. Most insurance plans are accepted.

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Board-certified podiatrists Dr. Tom Biernacki, Dr. Carl Jay, and Dr. Daria Gutkin see patients daily at our Howell and Bloomfield Township, MI offices.

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Pediatric Flatfoot: When Orthotics or Surgery Are Needed

Most children with flat feet need only observation, but symptomatic or pathological flatfoot requires intervention. Our podiatrists differentiate normal developmental flatfoot from conditions needing custom orthotics or surgical correction.

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Clinical References

1. Harris EJ, Vanore JV, Thomas JL, et al. Diagnosis and treatment of pediatric flatfoot. J Foot Ankle Surg. 2004;43(6):341-373.
2. Mosca VS. Flexible flatfoot in children and adolescents. J Child Orthop. 2010;4(2):107-121.
3. Pfeiffer M, Kotz R, Ledl T, et al. Prevalence of flat foot in preschool-aged children. Pediatrics. 2006;118(2):634-639.