What typically causes capsulitis?

Capsulitis is primarily caused by repeated joint sprains or microtraumas. This condition results from ongoing irritation and inflammation of the joint capsule due to stress placed on the joint over time. When a joint experiences repeated trauma, whether it be through overuse, inadequate warm-up before activity, or improper techniques in sports and physical activities, the tissues surrounding the joint can become inflamed, leading to capsulitis.

The joint capsule itself is a fibrous tissue that encases the joint, and when subjected to constant low-level stressors or acute injuries, it can respond with inflammatory changes. This inflammation can result in pain, decreased range of motion, and stiffness, which are hallmark symptoms of capsulitis.

The other options relate to different conditions or mechanisms. Improper joint management can contribute to joint issues; however, it is not the primary cause of capsulitis. Inflammation of bursae typically leads to bursitis, which is a different condition. Lastly, separation of articulating bones refers to dislocations or severe injuries, which are distinct from what typically leads to capsulitis. Understanding the specific nature of joints and their responses to repeated stress is crucial in differentiating these conditions.