Sciatica is the irritation that occurs in the sciatic nerve, which generates in the affected person a sensation of pain in the lower back region and which is possible to spread towards the back of the legs, even in The most severe cases can reach the foot, in the area of medicine it is one of the main reasons why patients go to medical consultation, in addition to being a frequent cause of sick leave in middle-aged people. The irritation that occurs in the sciatic nerve is due to pressure exerted on it.
The characteristic symptom of sciatica is pain, it can range from very mild to the point of being unbearable for those who suffer it, the time for which it occurs can also vary, there are cases in which it only occurs for short periods but in a sudden and intense way which does not allow the patient to move, there are also pain that extends for longer periods of time but in less intensity, whatever the case, the pain will always be reflected in one of the sides of the body, extending from the lower back to the buttocks, knees and foot areas. Performing any type of movement can increase the degree of intensity and pain, even when lying down the pain does not go away.
There are several causes that trigger this problem, one of them is the stenosis of the lung canal, which frequently affects the elderly, this occurs thanks to the osteoarthritis that is generated in the vertebral, specifically in the vertebral canal which causes pressure on the sciatic nerve. Another very common element in these cases is the presence of hernias in the discs of the vertebrae, this being by far the most frequent cause of sciatica, since the intervertebral discs move to the point of reaching the spinal cord, where it will generate pressure on nerves including the sciatic nerve.
