Lumbar Herniated Disc and Sciatica: Symptoms and When Surgery Is Needed

Spine

In this guide, we explain what a lumbar herniated disc is, what symptoms it produces, when a specialized evaluation is advisable, and in which cases surgery is considered.

Some signs cannot wait and require same-day attention

Although most herniated discs progress favorably, certain symptoms indicate a possible emergency. If you experience any of the following, do not wait for an appointment: go to an emergency service.

What a lumbar herniated disc is

Between each pair of vertebrae there is an intervertebral disc that acts as a shock absorber, made up of a firm outer layer and a gel-like core. A herniated disc occurs when this core shifts toward the spinal canal; its real clinical impact, however, arises when it compresses or irritates a nearby nerve root.

The most characteristic symptom is pain that travels down the leg, not back pain

It is common to associate a herniated disc with back pain; however, the symptom that most points to a compressed nerve root is pain that radiates down the leg. The most common symptoms are:

Symptom	How it presents
Radiating pain	Travels from the back or buttock toward the thigh, calf, or foot
Numbness	A tingling sensation or loss of feeling in an area of the leg or foot
Weakness	Difficulty lifting the foot, climbing stairs, or bearing weight
Pain that increases	When coughing, sneezing, straining, or sitting for a long time

The exact location of the symptoms helps the specialist identify which nerve root is affected, since each nerve in the lumbar spine maps to a specific area of the leg.

Sciatica is not a disease, but a symptom often caused by a herniated disc

The term "sciatica" describes pain that travels from the lower back down the leg, but it is not a disease in itself —it is a symptom. Its most common cause is a lumbar herniated disc pressing on the nerve root. For this reason, the key to appropriate treatment is not only relieving the leg pain, but identifying and treating the herniation that causes it.

A herniated disc can appear from gradual wear or from a single strain

In many cases, a herniation is the result of the natural wear discs undergo with age: the disc loses part of its water content, becomes less flexible, and more prone to herniating. In other cases, it appears after a specific effort, such as lifting a heavy object with poor technique or a sudden twisting movement.

Certain factors increase the likelihood of developing a herniated disc:

• Age, especially between 30 and 50
• Physical work involving repeated heavy lifting
• A sedentary lifestyle and weakness in the muscles that support the spine
• Excess weight, which increases the load on the lumbar discs
• Smoking, which affects disc nutrition

Diagnosis combines the physical examination with imaging studies

Diagnosing a herniated disc is not done with an image alone. It begins with the clinical history and a physical examination that assesses strength, sensation, reflexes, and certain maneuvers that reproduce or relieve the pain. This examination indicates which nerve root might be affected.

MRI is the study that best shows the discs and nerves, and it confirms the presence and location of a herniation. An accurate diagnosis arises from the correlation between what the image shows, what the patient feels, and what the specialist finds on examination: it is that combination which makes it possible to define the appropriate treatment for each case.

When surgery for a lumbar herniated disc is considered

Surgery is considered when there are clinical circumstances that make it the best option for the patient. In general terms, operating is considered in situations such as:

Situation	Why it is considered
Pain that does not subside	Disabling pain that persists despite several weeks of well-managed treatment
Progressive weakness	Loss of strength in the leg or foot that worsens over time
Warning signs	Altered sphincter control or numbness in the genital area (emergency)
Impact on daily life	When symptoms persistently limit work and everyday activities

The decision to operate is always individual. It depends on the correlation between the studies, the symptoms, and the examination, and on how the herniation affects each person's life. The goal of surgery is to relieve the pressure on the affected nerve when that pressure is the demonstrable cause of the symptoms.

If you would like to better understand the options available for your case, you can learn more about spine surgery and the procedures available based on your diagnosis.

Frequently asked questions about lumbar herniated disc

In which cases is a herniated disc operated on?

Although many herniations improve with conservative treatment, surgery may be the best option in specific cases: when there is disabling pain that does not respond to treatment, progressive weakness in the leg or foot, or neurological warning signs. A specialized evaluation, combining your studies with a neurological examination, is what determines whether your case would benefit from surgery.

How long does a herniated disc take to improve?

Most herniated discs improve considerably within six to twelve weeks with conservative treatment, as the body gradually reabsorbs part of the herniated material. If, after several weeks of well-managed treatment, the pain does not subside, or if weakness appears in the leg, it is time for a specialized evaluation.

Are a herniated disc and sciatica the same thing?

They are not the same. Sciatica is a symptom —the pain that travels from the back down the leg— while a herniated disc is one of its most common causes. Put another way: the herniated disc is the physical problem in the spine, and sciatica is the pain it can produce by compressing a nerve. Identifying the herniation that causes the sciatica is what makes it possible to treat the cause and not just the symptom.

Should I see a neurosurgeon or an orthopedist for a herniated disc?

Both specialties treat spinal conditions. What matters is that the specialist regularly treats the spine and evaluates the neurological component, since a herniated disc affects the nerves. When there is pain radiating to the leg, numbness, or weakness, a careful neurological evaluation is especially important.

Where can I get a consultation for a herniated disc near El Paso?

Dr. José Raúl García Zamarrón, a neurosurgeon certified by the Mexican Council of Neurological Surgery, offers spine consultations at Hospital Ángeles Ciudad Juárez, Av. Campos Elíseos 9371, Office 795 —minutes across the border from El Paso. You can schedule by phone at 656 227 1963 or via WhatsApp at 656 657 7818.

This content is for informational and educational purposes only. It does not replace a medical consultation, diagnosis, or personalized treatment. If you experience any of the warning signs described, please go immediately to an emergency room.