DIVING HAZARD is a term used to describe a potentially dangerous situation that can occur when a diver ascends too quickly from deep water. The most common diving hazard is known as 'the bends' or decompression sickness, which is caused by the formation of nitrogen bubbles in the bloodstream due to rapid changes in pressure. Symptoms of the bends include joint pain, dizziness, and fatigue. To avoid this hazard, divers must ascend slowly and make safety stops at regular intervals.