Pain in the heel area is clearly caused by fallen arches. As shown in the diagram, both the plantar fascia (a band of tissue under the sole) and the Achilles tendon are stretched. People who have to stand all day such as bartenders and nurses or have to walk for long periods (soldiers) and occasionally sportsmen and women can suffer severe pain. Damage to the Achilles tendon or its bursa, a fluid-filled sac, lies in the background of complaints. In serious cases a bony protrusion or spur can develop where the ligament is attached to the heel. In most cases the problem can be treated with orthotics which raise the heel a little, thus relieving the tension of the tendon.
The fallen arch and the high pressure in the heel area (white) are clearly visible in the pressure map obtained during the examination of the foot. Naturally this is painful for the sufferer. The pain can be relieved by orthotic insoles that raise the heel and support the arch.