This chapter presents the key facts, mechanism, anatomy, symptoms, diagnosis, and treatment of pelvic fractures e.g. avulsion fractures, and non-displaced pelvic fractures such as pubic ramis fractures, ischial body fractures, ilium fractures, sacral fractures, coccyx fractures, displaced pelvic fractures, acetabular fractures and hip fractures. Pelvic fractures represent 3% of all fractures, and are associated with significant morbidity and mortality. The mortality rate for high-energy pelvic fractures is between 10% and 20%. The pelvis consists of the ilium and pubis, and the ilium on each side forming the innominate bones that are then joined at the pubis symphysis anteriorly and the sacrum posteriorly. Fractures involving a single pubic ramis are usually caused by a fall in the elderly, though in the young it is often the result of persistent tension/stress on the adductors or hamstrings resulting in a fracture at their site of origination.