Arch Collapse Causes
Reviewed by Dr. Tom Biernacki, DPM, FACFAS
Board-certified foot & ankle surgeon · 3,000+ surgeries · @MichiganFootDoctors (950K+ subscribers)
Last reviewed May 8, 2026 · (810) 206-1402
Quick Answer: Foot arch collapse causes: PTTD (most common adult cause), pregnancy ligament loosening, weight gain, age-related ligament weakening, foot trauma. Custom orthotics + treatment of underlying cause halt progression.
PTTD Most Common
Posterior tibial tendon dysfunction = most common adult cause. Catch early.
FAQ
Will it always progress?
Without treatment usually yes. Treatment halts progression.
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