Last reviewed Thu 24 May 2018 By Jayne Leonard Reviewed by William Morrison, MD
Symptoms Triggers Treatments Seeing a doctor Prevention Takeaway
flare-up refers to a sudden and temporary increase in symptoms
. The condition affects the joints' cartilage, which is slippery tissue at the end of bones.
In healthy joints, cartilage allows bones to move smoothly, but osteoarthritis (OA) causes the cartilage to wear away and the bones to rub together, leading to pain and stiffness.