What fracture hurts the least?

Generally, hairline fractures, also known as stress fractures, tend to hurt the least compared to other types of fractures. These small, thin cracks in the bone often cause mild pain that may worsen with activity but may not be immediately noticeable. In contrast, more severe fractures, such as compound or comminuted fractures, typically result in significant pain and require immediate medical attention. However, pain perception can vary widely among individuals.