The plantar fascia can become irritated and inflamed when subjected to abnormal stress, leading to irritation and pain, commonly felt inside the heel. Surgical strategies for heel spur elimination are generally minimally invasive, involving little incisions and specialised devices to get rid of the heel bone spur with the heel. https://www.theorthopaedicandpainpractice.com/why-is-the-bottom-of-my-heel-painful/