Some morning stiffness that eases within a few minutes of moving is common and often relates to osteoarthritis or simply ageing joints. With osteoarthritis, stiffness is usually short-lived and improves quickly once you start moving.
Prolonged morning stiffness lasting more than 30 to 60 minutes is more typical of inflammatory arthritis such as rheumatoid arthritis. This often affects the small joints of the hands and feet symmetrically, with swelling, warmth, and sometimes fatigue. Identifying inflammatory arthritis early matters because prompt treatment can reduce long-term joint damage.
See a doctor if morning stiffness is prolonged, affects multiple joints, comes with swelling or redness, or is accompanied by fatigue, fever, or unintended weight loss. Blood tests and a physical examination are usually needed to distinguish inflammatory from wear-related causes. In the meantime, gentle movement and stretching can help ease stiffness.