Does ankylosing spondylitis cause morning joint stiffness?

Ankylosing spondylitis is an inflammatory condition that commonly affects the joints between the spine and pelvis, as well as other spinal joints. Inflammation can build during periods of rest, so the lower back, hips, or other joints may feel stiff after waking. Stiffness that lasts for a while and improves with gentle activity has a different pattern from soreness that follows overuse, although symptoms can overlap.

Morning stiffness alone does not identify its cause. A clinician considers its duration, the areas involved, night pain, movement, examination findings, and other symptoms before deciding whether testing is appropriate.

Begin the day with slow range-of-motion movements, a warm shower, or another comfortable source of warmth. Regular activity and a physiotherapy plan can help maintain spinal and hip movement; avoid forcing a painful stretch. Keep a brief record of where stiffness occurs, how long it lasts, and whether movement changes it. Share this pattern with a doctor or physiotherapist, especially if it keeps returning.

Arrange a medical assessment for persistent morning stiffness, recurring back or buttock pain, or steadily worsening movement. Seek urgent care for new loss of bladder or bowel control, numbness around the groin, or marked weakness in both legs. A suddenly hot, very swollen joint with fever also needs prompt attention.

Ask whether your stiffness pattern fits inflammatory back pain, whether examination or imaging is useful, and which exercises are suitable. You can also ask how medicines would fit alongside movement therapy and what warning signs should prompt earlier review.