What is a common mechanism of injury for a herniated disc in the spine?

A herniated disc in the spine is most commonly associated with age-related degeneration. Over time, the intervertebral discs, which act as cushions between the vertebrae, undergo wear and tear. This degeneration can lead to a decreased ability of the discs to absorb shock and may also result in the loss of hydration within the discs. As the discs weaken, they become more susceptible to protrusion or herniation, especially when subjected to additional stressors such as lifting or twisting movements.

While acute trauma, repetitive lifting, and sports-related injuries can also cause herniated discs, these mechanisms are less common compared to the natural degenerative processes associated with aging. In many cases, herniated discs result from a culmination of long-term wear rather than a single incident. This makes age-related degeneration the predominant factor in many cases of herniated discs, as it highlights the significance of the body's aging process and how it affects spinal health.