5 Stretches for SI Joint Pain You Can Do at Home

Oct 20, 2026

Start With a Safety Check Before Trying SI Joint Stretches

Pain near the sacroiliac joints can overlap with hip, lumbar and nerve-related problems. These gentle movements may feel helpful for some people, but they are not a diagnosis or a universal prescription. Stop if a movement causes sharp pain, spreading leg symptoms, numbness, tingling or weakness.

Choose a comfortable range, breathe normally and avoid forcing the end position. If one side feels very different, persistent or unstable, an individualized physical therapy exam is more useful than adding more stretches.


1. Supine Knee-to-Chest

Lie on your back with both knees bent. Bring one knee toward your chest until you feel a gentle stretch through the hip or low back. Keep the opposite foot supported. Hold 15 to 30 seconds and repeat two or three times per side.


2. Figure-Four Hip Stretch

Lie on your back and place one ankle across the opposite thigh. If comfortable, draw the supporting thigh toward you. You should feel a mild stretch in the buttock—not pinching in the groin or electric pain down the leg. Hold 15 to 30 seconds.


3. Half-Kneeling Hip-Flexor Stretch

Kneel on one knee with the other foot in front. Gently tuck the pelvis and shift forward a small amount while keeping the trunk tall. The stretch should be felt at the front of the hip on the kneeling side. Use padding and hold support if balance is limited.


4. Seated Hamstring Stretch

Sit near the edge of a firm chair and extend one leg with the heel down. Keep the back long and hinge forward from the hips until a gentle stretch appears behind the thigh. Do not round aggressively or chase a toe touch.


5. Gentle Lower-Trunk Rotation

Lie on your back with knees bent and feet supported. Let both knees move a small distance to one side, return to center, and repeat to the other side. Use a slow range that feels easy. This is a mobility drill, not a test of how far you can rotate.


How Often Should You Stretch?

Begin with one round once a day and judge the response later that day and the next morning. Mild stretching sensation is acceptable; worsening pain that lingers is a reason to reduce the range, choose a different movement or stop. Mobility is only one part of care—many people also need strength, load management and movement retraining.

Our SI joint pain physical therapy page explains how individualized care can combine education, movement, and a plan tailored for patients in Lafayette and Abbeville.


Do Not Stretch Through These Symptoms

  • Pain shooting below the knee
  • New numbness, tingling or weakness
  • New bowel or bladder changes
  • Saddle-area numbness
  • Severe pain after a fall or collision
  • Fever, unexplained weight loss or illness with back pain

Frequently Asked Questions

Which stretch is best for SI joint pain?

There is no single best stretch because similar symptoms can come from different tissues. The best movement is one that feels comfortable, does not spread symptoms and fits the findings from an evaluation.

Should I stretch both sides?

Gentle bilateral movement is often reasonable, but do not force the more painful side. Large side-to-side differences are useful information for a physical therapist.

What if stretching makes the pain worse?

Stop the aggravating movement. Reduce the range only if symptoms settle quickly; otherwise seek an evaluation, especially when pain spreads down the leg or includes numbness or weakness.


Need a Plan Beyond Stretching?

An evaluation can determine whether mobility, strength, load management—or a different referral entirely—fits your symptoms.