What Are the Symptoms of Sciatica?
May 17, 2022
Source: Cainiu Health
Dr. Xu Ge
Introduction
Sciatica often occurs after 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 morbidity.
Sciatica often occurs following trauma, physical exertion, or exposure to cold. The onset is typically sudden, with pain most commonly affecting one side (unilateral), though bilateral involvement may occur in rare cases. Pain is primarily localized to the distribution area of the sciatic nerve—namely, the posterior thigh, posterolateral calf, and foot. Patients experiencing severe pain may adopt a characteristic posture: lumbar flexion, knee flexion, and walking on the toes. When the lesion involves the nerve root, increased intraspinal pressure (e.g., during coughing or straining) exacerbates the pain.
A hallmark feature of sciatica is paroxysmal pain, which tends to worsen at night. In some patients, pain may be triggered or intensified by changes in body position or stretching of the sciatic nerve. Without timely appropriate treatment, sciatica may gradually progress to limping—a key clinical manifestation and an important indicator of disease severity and potential harm.
