In young animals that have not yet finished growing, the growth plates are built of cartilage that will mineralize with age. Fracture is defined as a complete or incomplete break in the continuity of bone or cartilage. The most common fractures in young animals include fractures of the lateral condyle of the humerus. Its breaking usually occurs when an animal lands poorly from a lower height or when it falls out of the owner's arms. Greenstick fracture is specific to young animals and is characterized by disruption of the continuity of the cortex on one side, while the cortex on the opposite side is bent. Tibial tubercle avulsions and physeal fractures are also common. Fractures involving the physis are classified according to the Salter - Harris classification into 6 types. Bone healing can be primary or secondary. Primary bone healing is possible only under conditions of almost complete inaction of the fragments. Secondary healing involves the formation of a callus whose function is to connect the crack, surround the fracture site and stabilize it. The specificity of young bones is that they create a stronger callus than adult bones and that healing itself is faster. X-ray is considered the gold standard in the diagnosis of fractures. Diagnostic X-rays provide insight into the type of fracture, its location and potential complications, and are also the basis for a treatment plan. Conservative treatment of fractures is stabilization using immobilization bandages and splints without creating a surgical wound and opening the surgical field. It is used for stable fractures with a transverse or short oblique fracture line, where it is necessary to prevent bending and rotation. Fractures involving joint surfaces, as well as avulsion fractures, should not be treated conservatively. Surgical treatment of fracture is the use of a surgical approach in order to achieve anatomical 52 reposition and reconstruction of fragments using implants that would hold them in place. The most commonly used are external fixators, plates and screws, and intramedullary pins. Relatively modern techniques of minimally invasive osteosynthesis are also used. During surgical treatment, care should always be taken that the implant does not bridge or damage the growth plate and does not compromise bone growth. Postoperative X-ray is necessary to assess healing. In adult patients, X-ray should be repeated 4 to 6 weeks after the procedure, and in the case of a young patient, after 2 weeks. After the fracture repair and during the healing process, various complications can occur. The most common are delayed union, malunion or nonunion, bone deformation, osteomyelitis and infections, postoperative sarcoma and complications caused by metal implants. If an immobilization bandage is placed, it can endanger the blood flow and cause muscle atrophy and joint contracture due to long-term immobilization. Dermatitis and decubitus ulcers can also occur.