Plantar Fasciitis is often a musculoskeletal issue leading to pain under the heel or in to the inner arch of the foot. Plantar Fasciitis is often mistaken for an impact trauma or heel bruise, nevertheless it is definitely due to the mechanical about-stretching with the fibrous tissue inside the heel https://www.theorthopaedicandpainpractice.com/why-does-the-back-of-my-heel-hurt/