1. Incomplete
1.1. Green stick
1.2. Fissure
1.2.1. Single
1.2.2. Multiple
1.3. Star
1.4. Deferred
1.5. Splintered
2. Cause
2.1. Extrinsic
2.1.1. Direct trauma
2.1.2. Indirect trauma
2.2. Intrinsic
2.2.1. Bone disease
2.2.2. Hormonal imbalance
2.2.3. Dietary imbalance
2.2.4. Incoordinate movement
3. Complete
3.1. Soft tissue damage
3.1.1. Simple
3.1.2. Compound
3.1.2.1. First degree
3.1.2.2. Second degree
3.1.2.3. Third degree
3.1.3. Complicated
3.2. Number of fracture line
3.2.1. Single
3.2.2. Multiple
3.2.3. Comminuted
3.3. Shape of fracture line
3.3.1. Transverse
3.3.2. Oblique
3.3.3. Spiral
3.3.4. Longitudinal
3.4. Anatomical location
3.4.1. Diaphyseal
3.4.2. Metaphyseal
3.4.3. Physeal
3.4.3.1. Type1 "physis"
3.4.3.2. Type2 "physis+distal diaphysis"
3.4.3.3. Type3 "physis+epipysis"
3.4.3.4. Type4 "physis+epipysis+distal diaphysis"
3.4.3.5. Type5 "Crushing injury of physis"
3.4.4. Epiphyseal
3.4.4.1. Articular
3.4.4.2. True articular
3.4.4.3. Condylar
3.5. Displacement of bone fragment
3.5.1. Transverse
3.5.2. Longitudinal
3.5.3. Overlapped
3.5.4. Angular
3.5.5. Avulsed
3.5.6. Impacted
3.5.7. Compressed
3.5.8. Depressed
4. Stability
4.1. Stable
4.1.1. Transverse
4.1.2. Green stick
4.1.3. Impacted
4.1.4. Angular deformity
4.2. Unstable
4.2.1. Oblique
4.2.2. Spiral
4.2.3. Multiple