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Why Does My Sciatica Flare
Up at Night or When Sitting?

Why Does My Sciatica Flare
Up at Night or When Sitting?

If you’ve ever struggled to sit through a meal, drive a car, or sleep through the night because of pain down your leg, you’re not alone. One of the most common frustrations we hear from patients with sciatica is: 

“Why does it hurt most when I’m resting?” 

Whether it’s sitting on the couch, in the car, or lying in bed—sciatica can flare up at the worst times. And while it may seem like rest should help, there’s often a deeper reason behind why the pain increases during these moments. 

At Wellbeing Chiropractic, we believe the more you understand about how your body works, the more empowered you’ll be to take steps toward lasting relief. 

What Is Sciatica (Quick Recap)?

Sciatica is a set of symptoms caused by irritation or compression of the sciatic nerve—the longest nerve in the body. It travels from your lower back through the hips and buttocks, down each leg. 

Sciatica is usually the result of an underlying issue such as: 

  • A bulging or herniated disc 
  • Spinal misalignment 
  • Piriformis syndrome (a tight muscle compressing the nerve) 
  • Pelvic imbalance or instability 

Why Does Sciatica Get Worse When Sitting?

When you sit, especially for long periods or in poor posture, several things happen:

Your hip flexors shorten and pull on the lower spine

Your pelvis can rotate or tilt, creating asymmetry

The weight of your upper body compresses spinal discs more than when you’re standing

The sciatic nerve itself may be stretched or pinched depending on how you’re sitting

For example, sitting on a soft couch that lets your spine round forward can increase tension on the sciatic nerve. Or driving for long periods may create compression around the lumbar spine and piriformis muscle.

The result? Irritated nerves and more pain.

Why Does Sciatica Flare Up at Night?

Night-time flare-ups are common too—and just as frustrating. 

When you lie down, your spine, muscles, and pelvis shift into different positions. If your body is misaligned, this can create tension on the sciatic nerve. Inflammation from the day may also settle in when you’re still, which can make discomfort more noticeable. 

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REASONS TO CONSULT OUR CHIROPRACTORS ?

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