| greenstick | | Break is straight across the bone. |
| compression | | Break occurs only through portion or cross section of bone. |
| incomplete | | Bone fragment is driven into another bone fragment. |
| transverse | | Compound/complex. Fracture goes through the mucous membrane or skin. |
| depressed | | Break is across the entire cross section of bone. |
| open | | Bone splintered into several fragments. |
| Avulsion | | Fragment of the bone pulled away from the ligament or tendon. |
| spiral | | Occurs through an area of diseased bone. |
| comminuted | | Fracture through the epiphysis of the bone. |
| complete | | Frequent with facial bones. |
| oblique | | Simple, no break in skin. |
| Epiphyseal | | Twisting around the shaft of the bone. |
| closed | | Break occurs at an angle across the bone. |
| pathologic | | One side of the bone is broken and the other side is bent. |
| impacted | | Bone has been compressed. Frequent in the spine. |