The short answer
Lumbar spinal stenosis is narrowing around nerves in the lower spine. It can cause leg pain, heaviness or numbness with standing and walking. Assessment must check whether the symptoms match the narrowing and consider other possible causes.
Understanding the problem
Some people feel better when sitting or bending forward. Imaging helps define the anatomy, but scan severity and symptoms do not always correspond. Examination and the pattern of walking limitation are important parts of the discussion.
Care and next steps
Non-surgical care may include appropriate exercise, symptom management and activity adjustments. Surgery is considered for selected persistent or severe problems. New bladder or bowel dysfunction, saddle numbness or rapidly worsening weakness requires emergency assessment.
Prepare for your consultation
Estimate how far you can walk before stopping and describe what relieves the symptoms. Bring spine imaging and a list of treatments already tried. Explain whether balance, sleep or daily independence is affected. Ask what improvement is realistic from each option and which symptom the proposed treatment is intended to address, especially when back pain and leg symptoms differ.
Common questions
Does a scan showing stenosis automatically require surgery?
No. Symptoms, examination, function and response to suitable care guide the decision.
Medical sources & further reading
This patient education guide was approved for publication by Dr Shahrukh Khan on 11 September 2026. It cannot diagnose your symptoms or replace a personalised clinical assessment. Editorial policy · About the doctor.