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Sciatic Nerve Pain - What are the Symptoms and Causes?
Sciatica or sciatic nerve pain is a term often used to describe all sorts of back pain. In fact, less than 5% of people who suffer from lower back pain will have sciatica.
Running down through the middle of the spine is a channel called the spinal canal, its here that the spinal cord sits. The spinal cord is the main structure that passes messages from our brains to our bodies.
Sciatica is caused by a sciatic nerve irritation. This is most commonly caused by a disc bulge in the lower back. What is the sciatic nerve?
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At each vertebra the spinal cord braches out to form a nerve root, these nerve roots leave the spine via a gap between each vertebra and then bundle together to form much larger nerves.
When the nerve is irritated by the disc bulge it can become inflamed. Remember what it feels like to hit your finger with a hammer or catch it in a door for a moment. Following the nasty sharp pain you are left with a dull ache. The finger may become red and swollen; there may be some heat or warmth there. After a while, those symptoms settle and everything gets back to normal. Its very similar with the sciatic nerve. It becomes very sore and can give you a lot of pain, even though it is not actually trapped or squashed.
The disc can and does cause problems however. Sometimes the central area of the disc bulges, usually backwards and sideways. This can cause an irritation of the nerve root as it leaves the spine. Occasionally the bulge is severe enough to actually squash or trap the nerve but this is fairly rare.
Why are so many people given the diagnosis of sciatica? Very often, as soon as anyone has any lower back or leg symptoms they are told that have sciatica. However, there are other things that can cause leg pain; a strained facet joint for example can cause pain in the buttock and thigh. But if the sciatic nerve is not irritated then it is not sciatica. Just as a book shouldn't be judged by its cover, we wish you read this entire article on sciatic block technique before actually making a judgement about sciatic block technique.
In the legs there are two main, large nerves, the femoral nerve at the front and the sciatic nerve at the back. The sciatic nerve passes down through the buttock area into the back of the thigh and leg.
What causes sciatic nerve pain? The most common cause of sciatica is a disc bulge. The disc is a very misunderstood structure; it has been blamed for back pain ever since it was discovered. Over the years we have started to believe that the disc is a really weak and vulnerable structure. We have tried to place the best definition about sciatic block technique in this article. This has taken a lot of time, but we only wish that the definition we gave suits your needs.
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The term slipped disc makes it sound as if it can slip about inside. In truth the disc cant slip anywhere, it is firmly fixed at the top and at the bottom to the vertebrae above and below.
An important thing to know is that many people have disc bulges and have no symptoms at all. There are some other conditions that can cause sciatic nerve pain but they are much less common. These include degenerative disc disease, severe osteoarthritis, spinal stenosis or spondylolisthesis. Fractures, tumours and infection can also cause sciatica.
In severe cases the leg may feel weak and the strength may be reduced. Often, disc bulges cause no back pain at all; the symptoms are felt only in the legs.
What are the symptoms of sciatica? If someone has true sciatica then they often have pain in the legs, usually in the buttock, back of the thigh or calf. There may also be pins and needles and numbness in parts of the leg.
The best way to tell if it is sciatica is to undergo a series of test that your physiotherapist or doctor can perform. These simple clinical tests will be enough to identify if the problem is an irritated sciatic nerve. Paula Fitzpatrick is a British trained physiotherapist specialising in the treatment of back pain. Visit The Lower Back Pain Toolkit for up to date, reliable information about the causes and treatment of lower back pain. Learn more about sciatica and sciatic nerve pain.
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Learn More about
Natural Sciatica Back Pain Treatments
Sciatica pain relief in a few simple and very easy steps.
If you know what to do, and most importantly, what to target, sciatica pain relief can be simple, easy and quick.
I get two common questions in my practice about sciatica. If you know the answers to these will help you getting directions to solving your back problems. Although back pain may be a pretty complex issue it... 
The term sciatica describes the symptoms of leg pain and possibly tingling, numbness or weakness that travels from the low back through the buttock and down the large sciatic nerve in the back of the leg. The vast majority of people who experience sciatica get better with time (usually a few weeks or months) and find pain relief with non-surgical sciatica treatment. For others, however, sciatica...
On average, symptoms will only happen on one side of the body.
This is a very common form of back pain, however the term sciatica actually applies to a set of symptoms rather than the diagnosis of what is irritating the nerve.
Causes
The cause of sciatica is generally the compression of the lumbar spine nerve root L4 or L5, or compression of the sciatic nerve itself, which is far less...
I wanted to share with you the important sciatica stretches that you can do to help get rid of back pain. There are a lot of people out there that have back problems and most of these people would describe it as the greatest pain you'll ever experience. I think it's important to understand that it isn't a sharp pain that hits you in one spot; it's a sharp pain that spreads across your back. You...
Sciatica is a condition in which one tends to experience pain in their lower back region and the surrounding areas such as buttocks, legs, feet etc. This condition is mainly caused due to compression and irritation caused in the sciatic nerve, or the nerve roots that combine together to generate the sciatic nerve. In addition to the severe pain, one also experiences weakness in the muscles, sense...
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