We typically think of arthritis as something that affects the joints of adults, especially as they grow older. However, arthritis is also found in children, whose bones are still growing.     The condition in children is called juvenile arthritis (JA)....

July is Juvenile Arthritis Month, and approximately 300,000 children in the U.S. have been diagnosed with juvenile arthritis. Diagnosing juvenile arthritis can be difficult because, unlike adults, children show negative rheumatoid factor blood tests. Therefore,...