The plantar fascia may become irritated and inflamed when subjected to extreme tension, resulting in pain and pain, generally felt while in the heel. Genu valgum (knock knees) Genu valgum or "knock knees" can be a deformity from the lower extremities. The majority of patients will not get any symptoms. https://www.theorthopaedicandpainpractice.com/treating-foot-arch-pain-with-modern-orthopaedic-pain-management-techniques/