What is sciatica?
Sciatica is pain along the path of the sciatic nerve, which runs from the lower back through the buttock and down the back of the leg. It is usually caused by a herniated disc pressing on a nerve root, spinal stenosis, or irritation of the nerve by tight muscles such as the piriformis. Symptoms include sharp, burning or shooting pain on one side, tingling, numbness and sometimes weakness. See ciática: síntomas (Spanish) and piriformis syndrome.
Rules for safe stretching with sciatica
- Move gently and stretch only to mild tension, not sharp pain.
- Hold each stretch for 20–30 seconds and repeat 2–3 times, once or twice daily.
- Breathe slowly and avoid bouncing.
- Stop if leg pain, tingling or numbness increases or spreads farther down the leg.
- Avoid deep forward bending and heavy twisting in the early acute phase if they aggravate your leg pain.
- Warm up with a short walk or a warm shower first.
- Stay active; prolonged bed rest delays recovery.
- See a clinician for a personalised plan if you are unsure.
Eight stretches to try
- 1. Knee-to-chest: lie on your back, pull one knee toward your chest, keeping the other leg bent or straight; hold 20–30 seconds.
- 2. Supine figure-four (piriformis) stretch: cross an ankle over the opposite knee and pull the thigh toward you.
- 3. Seated piriformis stretch: sit tall, cross an ankle over the opposite knee and lean forward with a straight back.
- 4. Supine hamstring stretch: lie on your back and raise a straight leg with a strap or towel. See hamstring stretches.
- 5. Lying spinal rotation: knees bent, drop both knees slowly to one side, keeping the shoulders flat.
- 6. Child’s pose: kneel and sit back on your heels, reach the arms forward.
- 7. Pelvic tilts: lie with knees bent and gently flatten the lower back against the floor, 10 repetitions.
- 8. Sciatic nerve glide (“flossing”): sit tall, straighten one knee while tilting the head back, then bend the knee while lowering the chin; 10 smooth repetitions without pushing into pain.
If bending backward feels better
Some people with disc-related sciatica find relief with extension-based exercises, such as lying on the stomach and propping on the elbows (“sphinx” pose) or doing gentle press-ups, and are made worse by flexion. This is the idea behind McKenzie-type approaches. Try 5–10 slow repetitions; if leg pain moves up toward the back (“centralisation”), that is a good sign. If it moves farther down the leg, stop. A physiotherapist can identify your directional preference.
Stretches and movements to be careful with
- Deep toe touches and forward bends if they increase leg pain.
- Aggressive twisting or loaded rotation in the acute phase.
- Pulling a straight leg up forcefully (a strong hamstring stretch can irritate an inflamed nerve).
- High-impact activity during a severe flare.
- Heavy lifting with a rounded back.
- Sitting for long periods without breaks.
- Any movement that sends pain further down the leg.
Beyond stretching: what else helps
- Walking daily, starting with short distances.
- Core and glute strengthening: bridges, bird-dog, dead bug, side planks.
- Heat or cold packs for 10–15 minutes, whichever eases the pain.
- Short courses of anti-inflammatories or paracetamol, if suitable.
- Good posture: a lumbar support when sitting, and frequent changes of position.
- Sleep on your side with a pillow between the knees, or on your back with a pillow under the knees.
- Manage weight, stop smoking and keep fit for long-term back health.
Medical options if it doesn’t settle
- Physiotherapy, manual therapy and a graded exercise plan.
- Medicines for nerve pain (such as gabapentin or amitriptyline) in selected cases.
- Epidural steroid injection for severe disc-related leg pain.
- MRI if symptoms persist beyond 6 weeks, are severe, or have red flags.
- Surgery (microdiscectomy) for persistent severe pain or progressive weakness.
- Most sciatica improves within 4–6 weeks without surgery.
When to see a doctor
- Loss of bladder or bowel control, or numbness around the genitals: emergency.
- Weakness in the foot or leg, or foot drop.
- Severe, unrelenting pain, or pain at night that does not ease.
- Sciatica after trauma, or with fever or unexplained weight loss.
- Pain lasting more than 4–6 weeks.
- Both legs affected.
- History of cancer or osteoporosis.
Three common situations
A person with buttock pain radiating to the thigh after sitting: piriformis and hamstring stretches, plus sitting breaks.
A person with sharp leg pain on bending forward after lifting: avoid forward bending, try extension exercises and see a physiotherapist.
A person with sciatica and new foot weakness: see a doctor promptly.
Key points to remember
Gentle stretches, walking and strengthening help most sciatica. Stretch to mild tension, stop if leg symptoms spread, and know the red flags. Our physiotherapy team can tailor exercises to your type of sciatica.
This guide is for general information and does not replace an assessment by your own doctor or physiotherapist.
Questions about sciatica stretches
These answers are general information and do not replace an examination or individual medical advice.
What stretches help sciatica?
Knee-to-chest, figure-four, seated piriformis, hamstring and spinal rotation stretches, pelvic tilts and nerve glides.
How long should I hold a stretch?
About 20–30 seconds, repeated 2–3 times.
Should I rest or move with sciatica?
Stay gently active; prolonged bed rest delays recovery.
Can stretching make sciatica worse?
Yes, if it increases leg pain or numbness; stop and seek advice.
How long does sciatica last?
Most cases improve in 4–6 weeks.
When should I see a doctor?
For loss of bladder or bowel control, weakness, severe pain or no improvement after a month.
Sources
This guide is for general information and does not replace medical advice. How a problem is diagnosed and treated depends on your examination and medical history. If you think you have an emergency, contact your local emergency services.