Sciatica nerve is the longest nerve in human anatomy. The origin of the nerve takes place at the lower end of the spinal cord and extends way down to the toes passing through the back of the leg. The nerve enterprises of five sub sciatica nerves. Compression or irritation caused to these five sub-sciatica nerves results in sciatica nerve pain. Each of the single sciatica nerve makes an exit at the intersection of two vertebral segments. L4 nerve root exists between lumbar segment four and five, L5 nerve root exists between lumbar segment L5 and Sacral segment 1.
The combination of these five nerves is grouped together into the piriformis muscle that measure to a single large nerve known as sciatica nerve. They branch out into the back portion of each leg to provide sensory functions and motor functions. The sciatica nerve pain is developed due to intense compression of these nerves. It is very important to diagnose at an early stage to opt for the right treatment that subdues developmental activity of sciatica. The root cause of the pain may differ from person to person. Treatment also varies accordingly and since it is important to consider every single symptom.
A person suffering from sciatica experiences severe pain in the lower back proportion of the body, leg, thigh and toes. Diagnosis for the same can be transported out through physical examination or through magnetic resonance imaging and through computerized tomography. Physical examination contains a straight leg rising test which detects the presence of sciatica. The patient generally lifts their leg into the air in a straight position and slowly brings it down varying the degree of angle. The pain is experienced between 30 ° and 70 ° during lowering the straight leg back into normal position.
It is always advisable for a person to keep a complete track record of their health. Any physical changes will be helpful in notifying the presence of sciatica. Immediate actions when carried out will be helpful in treating the pain and also restrain the same from occurring again and again. Apart from regular treatment, regular exercises are also advised to patients. Stretching exercises are the most common form of act to prevent development of sciatica pain in different parts. As the causes of sciatica changes from person to person, exercises too changes. Prevention is always better to keep the pain developed due to sciatica at bay.