Joint health

Why Do Joints Get Stiff?

Stiffness is a symptom, not a diagnosis. It can have many explanations, from temporary inactivity to injury or health conditions.

Context matters

Duration, severity, swelling, injury, time of day, affected joints and other symptoms can all matter. A supplement website cannot determine the cause from a symptom alone.

Seek medical advice for severe, persistent or unexplained stiffness, especially with significant swelling, redness, fever, injury, weakness, inability to use the joint normally, or other concerning symptoms.

For general education, see how joints work.