In juvenile idiopathic arthritis, when does joint stiffness typically worsen?

In juvenile idiopathic arthritis, joint stiffness typically worsens in the morning or after naps. This characteristic is due to the inflammatory nature of the condition, which leads to increased stiffness and pain after periods of immobility. During the night or following rest, the synovial fluid in the joints tends to decrease, making the joints feel stiffer and less mobile upon awakening.

As the child begins to move and engage in activities throughout the day, the joints often loosen up, leading to a reduction in stiffness. This phenomenon highlights the importance of managing symptoms effectively, especially the morning stiffness, to help children maintain functional mobility and engage in daily activities. Understanding this pattern is crucial for caregivers and healthcare professionals when planning interventions and supportive care for those affected by juvenile idiopathic arthritis.