A calcaneal prod is a hard outgrowth from the calcaneal tuberosity (heel bone). Calcaneal spikes are commonly identified by x-beam examination.It is a type of exostosis.When a foot is presented to steady pressure, calcium stores develop on the base of the impact point bone. By and large, this has no impact on an individual's every day life. In any case, rehashed harm can make these stores heap up on one another, causing a prod molded distortion, called a calcaneal (or heel) spur.An second rate calcaneal spike is situated on the substandard part of the calcaneus and is ordinarily a reaction to plantar fasciitis over a period, however may likewise be related with ankylosing spondylitis (commonly in kids). A back calcaneal prod creates on the rear of the heel at the addition of the Achilles tendon.An second rate calcaneal spike comprises of a calcification of the calcaneus, which lies better than the plantar sash at the inclusion of the plantar belt. A back calcaneal prod is frequently enormous and tangible through the skin and may should be evacuated as a major aspect of the treatment of insertional Achilles tendonitis.