The calcaneus is the largest tarsal bone in the foot and is well designed to withstand the stresses of daily living. The function of the subtalar joint is to accommodate to allow the talus to be correctly in the mortis facilitating free ankle motion. Every author who has ever written about the calcaneus has his own view of classification. A clear understanding of the pattern of the fracture of the calcaneus is a prerequisite for proper treatment. Such an understanding is usually possible using special plain radiographs supplemented by CT scans. The four major lines of treatment are: 1- No reduction early motion. 2- Closed reduction Fixation. 3- Open reduction Fixation Grafting. 4- Primary arthrodesis. Non-articular fractures of the calcaneus can be expected to heal rapidly and cause only minimal morbidity. However, up to 75% of calcaneal fractures include subtalar joint disruption; and severe permanent disability may follow.