Final answer:
True, swelling in one or more joints is a warning sign of arthritis, a condition that can result from various factors including aging, autoimmune diseases, and more. Both Rheumatoid arthritis and osteoarthritis can cause joint swelling, alongside other symptoms like pain and stiffness.
Step-by-step explanation:
Swelling in one or more joints is indeed a warning sign of arthritis. This common disorder of synovial joints results in inflammation, which leads to symptoms such as joint pain, swelling, stiffness, and reduced mobility. While there are over 100 forms of arthritis, they may stem from various causes including aging, damage to articular cartilage, autoimmune diseases, infections, or genetic factors.
Rheumatoid arthritis (RA) is a type of inflammatory disorder that primarily affects synovial joints and is more prevalent in women, particularly around the age of 40 to 50. Symptoms of RA include swelling of the joints, pain, and stiffness. Another form of arthritis, osteoarthritis (OA), associated with aging and "wear and tear," leads to joint swelling and pain, particularly after exercise or prolonged activity.