Plantar Fasciitis is actually a musculoskeletal issue triggering pain underneath the heel or in to the inner arch of the foot. Plantar Fasciitis is often mistaken for an influence trauma or heel bruise, however it is in fact because of the mechanical above-stretching with the fibrous tissue inside the heel https://www.theorthopaedicandpainpractice.com/why-does-the-back-of-my-heel-hurt/