Fractures in dogs and cats often result from trauma such as being hit by a car. Bones may also fracture due to disease (e.g.: infection, cancer). The most common bones to fracture from trauma are the pelvis and the long bones of the limbs: humerus, femur. Pets with fractures favor the limb and may not bear weight on it. Fractures are suspected when there is loss of weight bearing, swelling, bruising, and pain. Diagnosis of a fracture requires a physical examination and x-rays of the affected area. Due to limb shape and patient size/tolerance, most fractures in dogs and cats are repaired surgically, not with cast placement. Surgical repair of fractures involves the use of screws, pins, and/or plates to return the bone to it normal position, allow healing, and return to function. Complications of surgical repair are uncommon and often relate to a patient that is too active during the healing process. Post operative care requires rest to allow the bone to heal properly; excessive activity delays healing. Your veterinarian will schedule follow-up visits to take x-rays and monitor the progress of the healing process. Once the fracture has healed, your pet’s activity level can be gradually increased back to normal.