What is a common symptom of decompression sickness?

Decompression sickness (DCS), commonly known as "the bends," can present a range of symptoms due to the formation of nitrogen bubbles in the body's tissues and bloodstream as a diver ascends too quickly. Joint pain is one of the most characteristic symptoms, often described as a deep, aching discomfort in the joints that can significantly affect mobility. Nausea is also a common symptom and can occur due to various factors, including the body’s stress response to injury or the effects of nitrogen bubbles disrupting normal physiological processes. Ear pain might arise due to barotrauma, which can be associated with rapid ascents, but can also relate to complications from DCS itself, such as inner ear issues resulting from bubble formation.

Given that DCS may manifest symptoms like joint pain, nausea, and ear pain, the correct choice encompasses all these symptoms, accurately reflecting the varied presentations of decompression sickness. Understanding this is essential for divers, as recognizing these symptoms can lead to prompt treatment and potentially prevent serious complications.