It is estimated that 5-10% of all fractures are open fractures. The classification of open fractures helps to estimate the risk of complications and functional outcomes, and the Gustilo - Andersen classification is used. Bone healing is a complex physiological process that implies the coordinated action of a large number of cells and their precursors in response to the injury, resulting in complete recovery of the equivalent bone tissue and taking over the physiological function of this tissue. During healing, there are reactions of four different factors: periosteum, bone, bone marrow and surrounding soft tissue. Wound should be treated in some specific ways. The area around the wound should be clipped and washed and the wound washed with large amounts of sterile saline solution under low pressure. Antibiotic treatment is instituted as soon is possible, according to the degree of fracture estimation. After the debridement of the wound, which may be surgical, mechanical or enzymatic, the fracture must be surgically stabilized. We can use the methods of external or internal fixation. Which surgical technique will be used depends on the type and severity of the fracture, the patient's stability and the financial capabilities of the owner. If the patient can not immediately undergo surgery, the place of the fever should be immobilized. Most commonly, immobilization is carried out by Robert Jones bandage that provides external support and tissue protection, reduces edema and prevents further tissue damage. The most common complication is infection, but proper treatment of a patient can prevent or stop progression.