The bones (vertebrae) that form the spine in the back are cushioned by discs. These discs are round, like small pillows, with a tough, outer layer (annulus) that surrounds the nucleus. Located between each of the vertebra in the spinal column, discs act as shock absorbers for the spinal bones.
A herniated disc (also called bulged, slipped or ruptured) is a fragment of the disc nucleus that is pushed out of the annulus, into the spinal canal through a tear or rupture in the annulus. Discs that become herniated usually are in an early stage of degeneration. The spinal canal has limited space, which is inadequate for the spinal nerve and the displaced herniated disc fragment. Due to this displacement, the disc presses on spinal nerves, often producing pain, which may be severe.
Herniated discs can occur in any part of the spine. Herniated discs are more common in the lower back (lumbar spine), but also occur in the neck (cervical spine). The area in which pain is experienced depends on what part of the spine is affected.
Disc herniation is most often the result of a gradual, aging-related wear and tear called disc degeneration. As people age, the discs become less flexible and more prone to tearing or rupturing with even a minor strain or twist.
Most people can’t pinpoint the cause of their herniated disc. Sometimes, using the back muscles instead of the leg and thigh muscles to lift heavy objects can lead to a herniated disc. Twisting and turning while lifting also can cause a herniated disc. Rarely, a traumatic event such as a fall or a blow to the back is the cause.
A single excessive strain or injury may cause a herniated disc. However, disc material degenerates naturally as one ages, and the ligaments that hold it in place begin to weaken. As this degeneration progresses, a relatively minor strain or twisting movement can cause a disc to rupture.
Certain individuals may be more vulnerable to disc problems and, as a result, may suffer herniated discs in several places along the spine. Research has shown that a predisposition for herniated discs may exist in families with several members affected.
The lower back is most commonly affected by herniated discs. Some common symptoms of a herniated or slipped disc include:
Incontinence: Another very serious symptom of a herniated disc involves a disruption in your body’s ability to remove waste. If you stop feeling the urge to urinate or have a bowel movement or cannot control your bodily functions, get help immediately. Although this is a rare condition, it can lead to permanent damage.
Testing modalities are listed below. The most common imaging for this condition is MRI. Plain x-rays of the affected region are often added to complete the evaluation of the vertebra. Please note, a disc herniation cannot be seen on plain x-rays. CT scan and myelogram were more commonly used before MRI, but now are infrequently ordered as the initial diagnostic imaging, unless special circumstances exist that warrant their use. An electromyogram is infrequently used.
Herniated discs develop for reasons that include injury and disease. However, a top reasons is also aging. The spine’s supporting structures and discs weaken due to aging, leading to discs that are more prone to tearing or rupturing with even small twisting movements or when lifting items.
Most herniated discs occur in the neck (cervical) and lower back (lumbar) regions of the spine. However, they can happen anywhere along the spine. To understand how to avoid herniated disc problems, look to the primary causes of this condition as a guide. For example, lifting heavy items puts pressure on the spine, especially the lower back, so learning proper lifting posture can reduce the risk of developing a herniated disc.
Easy Tips for Avoiding a Herniated Disc
Knowing how to prevent slipped disc problems includes lifestyle changes. Since most herniated discs occur in the neck or lower back, many of the prevention tips focus on these areas.
Following are some easy or basic tips for reducing the risks.
Regular exercise can minimize the risk of developing a herniated disc, but once a herniated disc develops, there are exercises to avoid doing. The exercises to avoid are those that force the neck to bend or cause other spine misalignment and those that put excess pressure or force on the spine.
It is important to do gentle exercises that stretch and strengthen back muscle and increase flexibility. Gentle exercises include swimming, yoga, stretches that do not round the neck or back, walking and cycling.
Avoid the following exercises:
Patients who are diagnosed with herniated disc often think that surgical treatment is the only option when consulting a specialist. In reality however, herniated disc has various choices of treatment, depending on the condition and the level of severity.