What Are the Symptoms of Sciatica?
May 17, 2022
Source: Cainiu Health
Dr. Xu Ge
Introduction
Sciatica often occurs following trauma, physical labor, or exposure to cold. Its characteristic feature is paroxysmal pain, which typically worsens at night. If patients do not receive timely and appropriate treatment, sciatica may gradually progress to limping—a hallmark symptom of sciatica and a key indicator of its associated complications.
Sciatica commonly occurs following trauma, physical exertion, or exposure to cold. Onset is typically sudden, with pain predominantly affecting one side (unilateral), though bilateral involvement may occur in rare cases. Pain is localized to the distribution of the sciatic nerve—specifically the posterior thigh, posterolateral calf, and foot. In severe cases, patients may adopt a characteristic posture: lumbar flexion, knee flexion, and weight-bearing on the toes. When the lesion involves the nerve root, increased intraspinal pressure (e.g., during coughing or straining) exacerbates the pain.
Sciatica is characterized by paroxysmal pain, often worsening at night. In some patients, pain may be triggered or intensified by changes in body position or stretching of the sciatic nerve. Without timely intervention, sciatica may progressively lead to limping—a hallmark symptom and a key indicator of disease progression and associated morbidity.
