Sciatica Causes

Sciatic nerve pain occurs because of pressure on the sciatic nerve in your lower back. This pressure could be from many different causes. Some of the things that commonly cause a majority of cases of sciatica are explained below:


Bulging or Herniated Discs– Small discs exist between the vertebrae in the spine to help move and absorb pressure. If the alignment of the spine is not proper it exerts pressure on the discs. This misalignment can be caused by being overweight or simply by not maintaining good posture.
Uneven stress on the disc causes it to bulge outward. The disc may in turn press against the sciatic nerve resulting in sciatica pain. The treatment would aim at reducing any pressure on the nerve by correcting spinal alignment. For this you may need to correct any muscular imbalances and rectify your body posture as well.

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Are you suffering from severe pain in your spine that travels all the way down to the back of your leg?  If you’re experiencing persistent pain, there is a possibility you’re suffering from sciatica. This You won’t know for sure until a proper diagnosis has been carried out. In order to diagnose the cause of your pain, your doctor will go through your medical history, including any medications you take or have taken in the past, to arrive at an accurate diagnosis. You may also have to go through a neurological and physical examination, as symptoms of sciatica may be similar to other medical problems.
Your doctor may ask you to point out the distribution and intensity of your pain on a chart in order to better understand the problem correctly. Your physician may discover the accurate location of pain by observing your range of motion. Your muscle strength and reflexes could also be checked using a few physical movement tests. For an accurate diagnosis, other tests such as an MRI, CT scan or X-rays may also need to be carried out.


The type of tests to be conducted differs from individual to individual and also on the seriousness of pain experienced. Sciatica pain is felt from low back region to the area behind the thigh, and radiates to below the knee. The seriousness of sciatic discomfort can be so severe that people often believe that it has resulted due to a specific large trauma, whereas it is actually a cumulative result of multiple small trauma incidents.


The sciatic nerve is the longest nerve in the human body; it commences at the lumbar spinal cord and extends through the buttocks and down the legs. It is the pain on lower extremities that results from irritation of sciatic nerve and is called sciatic pain.  It is tricky to diagnose sciatica because there may be many medical conditions which can cause this kind of pain.

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When you are diagnosed with a condition like sciatica, it basically means that the sciatic nerve is inflamed. The largest of all peripheral nerves is the sciatic nerve and because of this, the pain is hard to ignore. This particular nerve is the one that sends information to and from the brain about the movements and sensations.


You can find the sciatic nerve at the spinal cord’s lower segment. It exits at the lumbosacral region. The lower back pain can be intense because the nerve passes through the hip joint and thighs. The functions of the sciatic nerve are just like other nerves in the body. Signals from the brain are sent to the muscles through the nerve, and it also collects sensory info from your legs and is sent to the brain. When you’re suffering from sciatica, these functions are affected.


Patients suffering from sciatica will experience weakness in the thighs and legs. It is vital that the root cause is determined. When there is rupture of the spine’s cushion, the nerve is compressed. With the increased pressure in the area, a person will experience pain, numbness, and weakness. The nerve can be irritated or inflamed due to herniated disc, spondylolisthesis, spinal stenosis, and piriformis syndrome.


How will you know if you have sciatica? You should watch out for the symptoms such as:

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In order to prevent and treat sciatica, it is best to know and understand the causes of it first. This main reason of this is that once you know the cause of the sciatic pain then you will be able to avoid anything that might trigger it.

  • Lumbar Herniated Disc (LHD)
One of the most common causes of sciatica is when the disc herniation of the lumber put more pressure on the nerve that it normally should have. Thus, it will result to irritation or an inflammation on the sciatic nerve. This will eventually reproduce the sciatica symptoms.

  • Other Common Causes
In addition to this, the irritation of the sciatic nerves is also a result of an intervertebral disc which is abnormal. This is normally referred to as ‘radiculopathy’. Moreover, aside from these main causes of sciatica, there are also other specific causes of it.
These other causes include the irritation in the nerve of the adjacent bone, muscle, tumors, internal bleeding, injury, infections, and other related health problems. As a matter of fact, sciatica can also occur during pregnancy. This is when the sciatic nerve is being irritated during the months of pregnancy. This is because it is the lower back that is more used for support. Read the rest of this entry »

In general, sciatica is caused by the compression of the nerve roots located in the lower back or in the lumbar area. The nerve roots that are affected or compressed may be only one set, but in some cases there are more than five sets that suffer this disorder. There are several various types of spinal disorders, which can cause this spinal nerve compression. Basing from the various medical studies conducted, there are six most common types of nerve compression. These are the herniated or bulging disc, lumbar spinal stenosis, spondylolisthesis, trauma, piriformis syndrome, and spinal tumors.

Specific Causes of Sciatica

  • Lumbar Herniated Disc (LHD)

Going to the specifics of the sciatica causes, the first one is the Lumbar Herniated Disc (LHD). A bulging or herniated disc is also referred to as ‘Contained Disc Disorder’ (CDD). This generally refers to the nucleus pulpous, a gel-like center, which remains contained in the annulus fibrosus or the tire-like an outer wall.

Herniated disc happens when the nucleus in our body breaks through our annulus. This occurrence is called ‘non-contained disc disorder’. Further, whether the disc herniates or bulges, the disc material can still press against the adjacent nerve root. The worst case scenario is when this disc material also presses a delicate nerve tissue other than the nerve root. This will eventually cause sciatica. After this, the herniated disc will get worse. The nerve compression as well as the irritation will often cause the pain and inflammation. This has a high probability to lead into extreme tingling, numbness, or muscle weakness of the patient.

  • Lumbar Spinal Stenosis (LSS)

Another cause of sciatica is the Lumbar Spinal Stenosis (LSS). This spinal stenosis is generally a disorder of a nerve compression. This disorder often happens to mature by people. One of the common results of this spinal stenosis is a leg pain which is very much similar to that of sciatica. The pain being experienced in this case is positional. Read the rest of this entry »

What is Sciatica?

Sciatica is a result of a disorder which occurs within the lumbar spine and eventually surges down the lower limb. It is the term used in order to describe the pain which radiates during the distribution of sciatic nerves. Physicians also refer to it as ‘lumbar radiculopathy’.

What is the general cause of Sciatica?

The general cause of sciatica is irritated sciatic nerves. The irritation is usually linked to the pressure caused by some muscles to these nerves. If left untreated, it may cause the sciatic nerves to be pinched to its limit. Thus, a pain or extreme burning will be felt by the person having this disorder.

The pain is specifically experienced in the lumbar area or on the lower back of the body. The sciatic pain will eventually travel to down to the thigh and will radiate to beyond the knee. It may sometimes reach the toes of the patient.

What is a Sciatic nerve?

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