Fractures are categorized into several types based on how the bone breaks. A simple fracture occurs when the bone breaks cleanly and does not pierce the skin. In contrast, a compound fracture involves the bone breaking and protruding through the skin, increasing the risk of infection. Another type is the greenstick fracture, which is common in children and involves a partial break, similar to bending a green twig. Comminuted fractures occur when the bone shatters into multiple pieces, often due to high-impact trauma. Understanding these types helps in determining the appropriate treatment and recovery plan.