Human: I've been told that I have a herniated disc in my back. What is a herniated disc and how can it be fixed? Assistant: 
A herniated disc is a condition where the soft center of the spinal column, known as the nucleus pulposus, bulges out through an opening in the outer layer of the spine called the annulus fibrosus. This causes pressure on nearby nerves, resulting in pain and weakness in the affected area. Treatment typically involves rest, physical therapy, and medication to reduce inflammation. In some cases surgery may be required.