Sciatica Pain: Causes, Symptoms & How to Stop Buttock Pain Shooting Down Your Leg

If you’re Googling things like, “buttock pain shooting down leg,” or “numbness in leg and foot,” chances are you’re dealing with sciatica.

While it’s commonly referred to as a condition, sciatica isn’t really a condition or formal diagnosis — it’s a set of symptoms caused by irritation or compression of the sciatic nerve. And because this nerve runs from your lower back to your toes, the pain can travel far beyond your spine.

Here’s what’s happening — and how to stop it.

What Is the Sciatic Nerve?

The sciatic nerve is the longest and thickest nerve in your body — nearly the width of a finger. It begins in the lower spine (lumbar region), travels through the buttock, and runs down the back of each leg.

Just above the knee, it branches into two nerves that continue into the calf, foot, and toes.

That’s why sciatic pain can:

• Start in the lower back
• Travel through one buttock
• Shoot down the back of the leg
• Reach all the way to the toes

Take a deeper dive into the symptoms and physiology of sciatica in our Back Pain Center.

Common Causes of Sciatica

Sciatica occurs when a spinal nerve root becomes inflamed, compressed, or irritated.

1. Herniated or Bulging Disc (Most Common Cause)

When a lumbar disc slips or bulges, it can press against nearby nerve roots — especially at:

• L4
• L5
• S1

This compression triggers radiating leg pain.

Related: Chiropractic care and herniated disc pain.

2. Piriformis Syndrome

Tight glute muscles (especially the piriformis) can compress the sciatic nerve in the buttock.

Symptoms often worsen when sitting.

3. Spinal Stenosis

Narrowing of the spinal canal can compress nerve roots, especially in adults over 50.

4. Spondylolisthesis

When one vertebra slips forward over another, it may narrow the nerve exit space.

5. Degenerative Disc Changes

As discs age, they lose hydration and height — reducing cushioning and increasing nerve irritation.

Sciatica Symptoms by Nerve Root

A Doctor of Chiropractic evaluates your symptoms carefully to identify which nerve root is affected.

L4 Nerve Root Dysfunction

• Hip, thigh, inner knee, and calf pain
• Reduced knee-jerk reflex
• Inner calf numbness
• Thigh muscle weakness

L5 Nerve Root Dysfunction

• Buttock pain
• Outer thigh and leg pain
• Numbness in big toe and second toe
• Difficulty lifting the foot or big toe

S1 Nerve Root Dysfunction

• Pain in buttock, calf, or outer foot
• Numbness in outer toes
• Difficulty walking on toes
• Reduced ankle reflex

Muscle weakness, numbness, or reflex changes indicate nerve involvement and should be evaluated promptly.

How Chiropractors Diagnose Sciatica

Sciatica requires identifying the source of nerve compression, not just treating symptoms.

A chiropractic exam may include:

• Neurological testing
• Reflex testing
• Orthopedic evaluation
• Range of motion assessment
• Digital imaging if necessary
• MRI referral when clinically indicated

The goal is to determine:

• Which nerve root is involved
• Whether a disc is compressed
• Whether the issue is muscular or structural

How Chiropractic Care Treats Sciatica

Once the source is identified, treatment focuses on relieving nerve pressure and restoring alignment.

A personalized care plan may include:

1. Gentle Spinal Adjustments

• Decompress nerve roots
• Restore vertebral alignment
• Improve spinal mobility

2. Active Therapies

• Targeted strengthening exercises
• Stabilization training
• Stretching to reduce inflammation

3. Postural Correction

• Reduce spinal stress
• Prevent recurring compression

Research has shown chiropractic care can provide significant relief for sciatica patients — often comparable to surgical outcomes for many non-emergency cases.

Exercises That May Help Relieve Sciatica

Note from our DCs: Before beginning any routine, consult your provider – especially if your symptoms are severe.

Figure 4 Stretch (Supine Glute Stretch)

• Lie on your back
• Cross ankle over opposite thigh
• Gently pull knee toward chest
• Hold 15–30 seconds

Targets glute tension that may compress the sciatic nerve.

Hip Flexor Stretch

• Lunge position
• Tuck pelvis slightly
• Lean forward gently
• Hold 15–30 seconds

Reduces pelvic tension contributing to lumbar strain.

Hamstring Stretch

• Use strap or towel
• Raise leg while lying down
• Gently pull toward chest
• Keep shoulders relaxed

Tight hamstrings increase stress on the lower spine.

If a stretch increases radiating pain, stop immediately.

Preventing Sciatica Relapse

Long-term success requires strengthening and lifestyle modification.

To reduce recurrence:

• Take movement breaks every hour
• Avoid prolonged sitting
• Use supportive footwear
• Avoid carrying heavy bags on one shoulder
• Maintain regular spinal check-ins

Sciatica often returns when underlying biomechanical issues remain unaddressed. For lasting relief, a proper diagnosis that identifies the root cause of your pain is essential.

When to Seek Professional Care

See a chiropractic provider if you experience:

• Pain lasting longer than a few weeks
• Numbness or tingling in the leg
• Muscle weakness
• Difficulty walking
• Loss of bowel or bladder control (seek emergency care)

Early intervention improves outcomes and reduces the risk of chronic nerve irritation.

Ready to Stop Sciatic Nerve Pain?

Buttock pain shooting down your leg is not something you have to live with.

At Chiro One, our Doctors of Chiropractic perform comprehensive evaluations to identify the root cause of sciatic nerve compression — then create a personalized care plan combining gentle adjustments and active therapies.

Find a Chiro One clinic near you and take the first step toward lasting relief.