Sciatalgia

Updated on 25 February 2026

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Sciatalgia is a pain that starts in the buttock or at the back of the thigh and runs down the leg. For many people, this pain appears suddenly and quickly becomes part of daily life. Walking, sitting, driving, or sleeping can become uncomfortable, even painful.

This pain is often related to the sciatic nerve, the longest nerve in the human body. When irritated, it can transmit painful signals over a long distance. However, contrary to common belief, sciatalgia is not always associated with back pain. Some people mainly feel pain in the leg without significant lower back pain. Understanding sciatalgia not only helps better recognize the symptoms but also reduces anxiety and encourages timely consultation.

What is Sciatalgia

Sciatalgia refers to pain associated with irritation of the sciatic nerve or its roots. This nerve originates in the lower back and pelvis region, passes through the buttock, runs down the back of the thigh, and extends to the foot.

When irritated, compressed, or sensitized, the pain can follow its natural path. It may be constant or intermittent, mild or more intense. In some individuals, the pain clearly starts in the buttock. In others, it is mainly felt behind the thigh or in the calf.

Sciatalgia most often affects only one leg. Its progression depends on the cause, physical condition, and lifestyle habits of the person.

Sciatalgia or Lumbosciatalgia: an Important Distinction

The Most Useful Difference: Where the Pain Starts

Lumbosciatalgia generally starts in the lower back, then the pain travels down the buttock and leg. Sciatalgia, on the other hand, primarily begins in the buttock or at the back of the thigh, even when the lower back does not hurt particularly.

Why This Distinction Is Essential

The starting point of the pain guides clinical evaluation. Mainly lower back pain involves different structures than pain originating in the buttock. This distinction helps adapt the examination and treatment plan.

The Sciatic Nerve Can Be Irritated at Different Levels

The nerve can be irritated near the spine or further along its path. That’s why a thorough evaluation is necessary to identify the real source of the symptoms.

Possible Causes of Sciatalgia

Irritation of a Lumbar Nerve Root

A nerve root can be irritated in the lumbar region, notably in the presence of a herniated disc or narrowing of the space through which the nerves pass. Even without marked lower back pain, the pain may be mainly felt in the leg.

Compression of the Nerve in the Buttock Area

In some cases, sciatalgia is related to irritation of the sciatic nerve in the buttock. Piriformis syndrome is a common example. The nerve is then compressed by a tight or overused muscle.

Progressive Mechanical Overload

Sometimes, no specific event explains the onset of symptoms. Prolonged posture, repetitive movements, or uneven load distribution can gradually irritate the nerve and trigger pain.

Risk Factors and Living Context

Prolonged Sitting

Sitting for long periods, especially without breaks, increases pressure on the pelvis and lower back area. A poorly adjusted chair can increase tension in the buttock and back of the thigh.

Repetitive Strain and Physical Labor

Repetitive movements, manual handling, or certain work postures can overload the structures protecting the sciatic nerve. Over time, this overload can cause irritation.

Physical Activity and Sports Overload

Resuming activity too quickly or suddenly increasing training can cause sciatalgia, especially if the body is not sufficiently prepared.

Sedentary Lifestyle and Loss of Mobility

Lack of movement leads to reduced joint mobility and muscular flexibility. These changes increase pressure on the sciatic nerve.

Common Symptoms of Sciatalgia

Symptoms vary from person to person. However, some signs are frequent.

• pain that travels down the leg
• burning or shooting sensation
• numbness or tingling
• weakness sensation in the leg or foot

These symptoms may evolve over time and vary according to positions or activities.

Impact of Sciatalgia on Daily Life

Sciatalgia is not limited to pain. It can affect the ability to work, walk for long periods, or perform certain simple tasks. Sleep is often disturbed because finding a comfortable position becomes difficult.

In the long term, persistent pain can lead to decreased physical activity, which increases stiffness and slows recovery. That is why early management is important.

When to Consult Quickly

In most cases, sciatalgia is not an emergency. However, some signs require rapid consultation.

It is important to seek urgent medical attention if you have:

• significant weakness in the leg or foot
• marked loss of sensation
• pain in both legs
• loss of bladder or bowel control These situations must be evaluated without delay.

How a Chiropractor Evaluates Sciatalgia

The chiropractor evaluates neuromusculoskeletal conditions, including sciatalgia. The examination includes analysis of symptoms, posture, joint mobility, and neurological function.

This evaluation helps identify the structures involved and better understand what irritates the sciatic nerve.

Chiropractic Approach and Treatment Goals

Identify the Exact Source of Irritation

The chiropractor seeks to determine at which level the nerve is irritated. This step is essential to establish an appropriate treatment plan.

Improve Mobility and Reduce Strain

The treatment aims to improve joint movement and decrease tension in the tissues surrounding the nerve.

Promote Active Recovery

The treatment plan often includes exercises to improve stability, strength, and motor control. This approach helps prevent relapses.

Adapt Daily Habits

Practical advice is provided for work, sleep, and daily activities. These adjustments reduce irritants and support recovery.

Prevention and Long-Term Maintenance

Prevention involves movement, good posture, and progressive physical activity. These elements help maintain the health of the spine, pelvis, and nervous system.

Frequently Asked Questions About Sciatalgia

Is Sciatalgia Serious?

It is not always serious but can become very limiting without proper care.

How Long Does Sciatalgia Last?

Duration varies depending on the cause and context. Some improve quickly, others require more time.

Can You Stay Active?

In many cases, yes. Appropriate movement is often beneficial.

Can Sciatalgia Return?

Yes, especially if contributing factors are not corrected.

Sciatalgia can significantly impact quality of life, but appropriate care often reduces pain and restores better mobility.

A chiropractor can help you understand the origin of your symptoms and develop a personalized treatment plan.

👉 To consult a chiropractor member of ChiroRéseau, visit https://chiroreseau.com/cliniques/ to find a clinic near you.

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