Acute ankylosing spondylitis symptoms and care

A flare may affect the lower back, buttocks, hips or other joints and can disrupt sleep and movement. It does not mean the entire disease began suddenly, and a new severe symptom should not automatically be attributed to the condition.

People with ankylosing spondylitis often experience inflammatory back pain and stiffness that is worse after rest and may loosen with gentle movement. Fatigue, reduced range of motion, tender tendon attachment sites or swelling in a peripheral joint can accompany a flare.

Pain can also come from muscle strain, infection, fracture or nerve compression. A change from your established pattern deserves attention, particularly after trauma or when neurological symptoms appear.

Follow the flare instructions agreed with your rheumatology team. Balance short periods of rest with comfortable movement, change position regularly, and continue only the stretches or exercises that do not cause sharp or radiating pain. Heat may ease stiffness if skin sensation is normal.

Use anti-inflammatory or other prescribed medicine according to its directions rather than changing the dose yourself. Record symptom location, morning stiffness, sleep disturbance, eye symptoms and how daily function has changed; this helps the clinical team adjust care.

Get urgent help for new leg weakness, numbness around the groin, loss of bladder or bowel control, or severe spinal pain after a fall. A painful red eye with light sensitivity or blurred vision needs same-day assessment. Fever, breathing difficulty or a hot swollen joint also warrants prompt medical review.

Ask whether the current pattern is consistent with inflammatory activity, how medicines should be handled, which exercise level is suitable now, and whether eye, nerve or joint findings require another specialist or imaging.