What symptom is sciatica?

summary

There are many diseases in life that need to be paid enough attention to. For example, sciatica is a common disease. If there is no timely treatment, the activity of patients will become very difficult. Usually we often see or hear about sciatica. Although the harm of this disease is not very great, it will also seriously affect people's life and health, So we should pay attention to learn more relevant knowledge and discover the disease in time. What are the symptoms of sciatica?

What symptom is sciatica?

The first is pain. The pain is mainly in the sciatic nerve distribution area, the back of the thigh and the posterolateral side of the leg. Patients with severe pain may have special postures, such as lumbar flexion and knee flexion. For example, when the lesion is located at the nerve root, the pain will be aggravated when the pressure in the spinal canal increases.

And then there is the usual degree of muscle weakness, but also according to the patient's etiology, lesion location and degree of damage vary greatly, there may be sciatic nerve innervation muscle all or part of the weak or paralyzed. In addition, there may be tenderness of the sciatic nerve at the sciatic notch.

There is also the sciatic nerve traction sign, often parallel to the severity of pain, in addition to the patients with Achilles tendon reflex decreased or disappeared, knee reflex can be increased due to stimulation, there can be sciatic nerve innervation area of a variety of sensory decline or disappear, including the lateral malleolus vibration decreased.

matters needing attention

Finally, we want to say that sciatica is mostly unilateral, not accompanied by low back pain. Pain is usually persistent, and symptoms become more severe as the pressure on the spinal canal increases.