Stable fractures refer to incomplete fractures or complete fractures that are less likely to displace again after reduction and external fixation. They are characterized by easy reduction and fixation, generally maintaining their position under external fixation, with a favorable prognosis and minimal risk of malunion or nonunion. Clinically, the most common types of stable fractures include the following: First, non-displaced fractures, also known as fissure fractures. On X-rays or CT scans, only a crack is visible without misalignment, making them relatively stable. Second, greenstick fractures. These are more common in children, where the periosteum remains intact despite the bone break, and sometimes part of the cortex remains continuous, classifying it as a stable fracture. Third, impacted fractures. These occur when one end of the fracture is driven into the other by force, creating a relatively stable temporary connection. Fourth, stable fractures also include depressed fractures, transverse fractures, and mild compression fractures.