Whether or not a thigh fracture requires surgery depends on the severity of the fracture and the choice of treatment methods such as external or internal fixation. If the fracture is minor with little displacement, external fixation such as traction, splint, or plaster is usually sufficient, but if the fracture is significantly displaced or if the fracture is more severe, internal fixation with incision and reduction is usually required. In addition, conservative treatment is usually used for some children and patients who cannot tolerate surgery, such as the elderly. Internal fixation is a method of physically reattaching the bones. This may involve the surgeon placing special screws, plates, rods, wires, or nails inside the fractured bones to hold them in the correct position, which can prevent the bones from healing abnormally. If a thigh fracture occurs, you need to visit a hospital orthopedic department immediately.