A herniated or “slipped” disc occurs when the soft, pliable cushioning between the vertebrae pushes out into the nerves of the spinal cord. Herniated discs are most commonly reported among the vertebrae of the neck or lower back, and are often accompanied by intense pain. Depending on the severity of pain or nerve impediment, treatment may range from anti-inflammatory drugs to more invasive procedures.Discs have both a firm outer ring made up of cartilage, called the annulus, and a more pliable gelatin center, called the nucleus. In a herniated disc, abnormal expansion of the nucleus pushes the annulus into the spinal cord, interfering with local nerves, and causing the resulting pain. This process can develop from a variety of circumstances, including bad posture, excess body weight, improper lifting techniques, a fall or accident, repeated strain of the back, or sudden pressure. In addition, discs are susceptible to general wear and tear, and become more vulnerable as their water content and associated flexibility decreases throughout the aging process.