What is the typical initial effect of a herniated intervertebral disc at the L4 to L5 level?

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A herniated disc at the L4 to L5 level typically results in lower back pain that radiates down the leg, which is known as sciatica. This is because the nerves that serve the leg are compressed or irritated by the herniated disc. Other symptoms may include tingling or numbness in the leg or foot. Muscle weakness in the affected leg may also occur in some cases, but it is not typically the initial effect. Back pain and weakness at waist level or urinary incontinence are not typical initial effects of a herniated disc at this level.

What Is the Typical Initial Effect of a Herniated Intervertebral