Which of the following are signs of decompression sickness to be aware of?

Joint pain and skin rashes are well-documented signs of decompression sickness (DCS), commonly known as "the bends." This condition can occur when divers ascend to the surface too quickly, causing nitrogen dissolved in bodily tissues to form bubbles. The nitrogen bubbles can lead to a variety of symptoms, including joint pain, which often presents itself as a deep, aching discomfort in the limbs, and skin rashes, which may appear as mottled skin or other dermatological issues.

Being aware of these symptoms is crucial for divers and dive supervisors, as timely recognition and treatment of DCS can prevent serious complications. Understanding the signs of decompression sickness can help in making quick decisions regarding treatment, such as administering oxygen or arranging for medical intervention, which is vital for ensuring the safety and health of all divers involved.