Fibromyalgia and CPK Levels: Understanding the Connection

Creatine phosphokinase (CPK) is an enzyme that is found in the muscles. When muscle tissue is damaged, CPK is released into the bloodstream, so elevated CPK levels can be a sign of muscle damage.

Fibromyalgia is a chronic pain condition that is characterized by widespread pain and tenderness in the muscles, tendons, and ligaments. However, fibromyalgia does not typically cause elevated CPK levels.

In fact, a study published in the journal "Arthritis & Rheumatology" found that CPK levels were actually lower in people with fibromyalgia than in healthy controls.

This suggests that fibromyalgia is not associated with muscle damage. Instead, the pain in fibromyalgia is thought to be caused by changes in the way the brain processes pain signals.