This document summarizes different types of bone fractures. It describes comminuted fractures as fractures where the bone breaks into several smaller pieces. It then briefly outlines other common fractures like simple, compound, oblique, greenstick, and spiral fractures. Oblique fractures occur at an angle in the bone and can be caused by falls or impacts. Greenstick fractures incompletely break one side of the bone while bending the other side, and typically affect children's more pliable bones. Spiral fractures result from a twisting force that causes an oblique or spiral crack around the bone shaft.