If left untreated, a severe slipped disc or herniated disc can lead to permanent nerve damage. However rare, a herniated disc can even cut off nerve impulses to the cauda equina nerve in the lower back and legs. While these are rare, it is best for you to get diagnosed and treated as soon as possible after experiencing the following symptoms of a herniated disc: • Pain and numbness • Pain that continues to your arms or legs • Pain that worsens at night while relaxing or with certain movements • Pain that worsens after standing or sitting for longer periods • Pain when walking short distances • Unexplained muscle weakness • Tingling, aching or burning sensations in the affected area (like the back or neck)