Identify a common sign of decompression sickness.

Joint pain, dizziness, difficulty breathing, and fatigue are key indicators of decompression sickness, often referred to as "the bends." This condition occurs when a diver ascends too quickly, leading to the formation of nitrogen bubbles in the bloodstream and tissues. The presence of these symptoms typically arises as the body struggles to cope with the sudden changes in pressure, which can affect various systems.

Joint pain, often localized in the larger joints, is particularly characteristic of decompression sickness, where trapped gas bubbles can cause inflammation and pain. Dizziness may stem from impaired circulation and gas bubbles affecting the brain. Difficulty breathing usually indicates an impact on the respiratory system due to gas bubbles obstructing blood flow or affecting lung function. Fatigue can result from the overall stress on the body as it attempts to manage the effects of the condition.

Overall, the combination of these symptoms is commonly associated with decompression sickness, indicating the potential severity of the disorder and the need for immediate medical attention.