A recent study suggests that a child with Down syndrome remains at a higher risk of an associated form of arthritis. Additionally researchers recommend changing the name to Down syndrome-associated arthritis to more accurately reflect the inflammatory and erosive nature of the condition. Details of this study were presented at the 2019 ACR/ARP Annual Meeting. About one child in every 1000 develops some type of chronic arthritis. These disorders can affect children at any age although rarely in the first six months of life. Down syndrome is a condition in which a person has an extra chromosome number 21 which