What is a common sign of decompression sickness?

A common sign of decompression sickness, often referred to as "the bends," is the presence of bubbles in the skin or joints. This condition occurs when a diver ascends too quickly, leading to the formation of nitrogen bubbles in the body as dissolved gases come out of solution. The accumulation of these bubbles can cause a range of symptoms depending on where they occur in the body. When they form near the skin, they can lead to a rash or a feeling of itching. When they occur in joints or muscles, they can cause pain and swelling, often described as a deep ache or "the bends."

Recognizing the formation of bubbles is crucial because it helps divers identify potential decompression sickness early, allowing for prompt treatment, which is essential to prevent more severe complications. Understanding the symptomatology of decompression sickness is an important part of dive training, as it equips divers to respond appropriately should they ever experience these symptoms during or after a dive.