What characterizes Type I decompression sickness?

Type I decompression sickness, often referred to as "the bends," is primarily characterized by joint pain and skin symptoms. This condition occurs when a diver ascends too quickly, causing nitrogen bubbles to form in the bloodstream and tissues as they expand. The joint pain, commonly described as aching or throbbing, can affect various parts of the body, typically occurring in the larger joints like the knees and elbows.

In addition to joint pain, skin symptoms can also manifest, such as rashes or mottled skin, which may occur due to nitrogen bubbles affecting superficial tissues. Understanding the primary symptoms associated with Type I decompression sickness is critical for timely recognition and treatment, which greatly improves outcomes for affected divers. The emphasis on joint pain and skin manifestations helps differentiate Type I from Type II, which is more associated with neurological issues and other severe complications.