General

Arthritis is a condition describing inflammation of a joint, and applies to over 100 diseases that have been identified to date. Most of these diseases fall into one of two categories: degenerative arthritis, such as osteoarthritis, or inflammatory arthritis, such as rheumatoid arthritis. Symptoms of most types of arthritis include pain, stiffness, and swelling in the joint.

Explore the topics below for peer reviewed articles that explain how arthritis causes joint pain as well as the differences between degenerative and inflammatory arthritis.

The sacroiliac joints, or SI joints, are susceptible to inflammation, called sacroiliitis, which may also be a symptom of other inflammatory arthritic conditions. Learn which types of arthritis can affect the SI joints.

Trigger finger, also known as stenosing tenosynovitis, occurs when the fingers' tendon sheaths become inflamed. The condition commonly occurs in patients with rheumatoid arthritis.

Over 100 types of arthritis affect 46 million adults in the United States. Most types of arthritis are classified into one of two groups: degenerative arthritis or inflammatory arthritis.

The key component of understanding joint pain from arthritis is inflammation. Joints vary in responsibility; certain joints more prone to pain include the hips, knees, and shoulders.

Crepitus is the medical term for cracking or popping sounds in a joint such as the knee. Learn about crepitus pain symptoms and treatment in this article.

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