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Overview

A herniated disk refers to a problem with one of the rubbery cushions (disks) between the individual bones (vertebrae) that stack up to make your spine. A spinal disk is a little like a jelly donut, with a softer center encased within a tougher exterior. Sometimes called a slipped disk or a ruptured disk, a herniated disk occurs when some of the softer “jelly” pushes out through a crack in the tougher exterior. A herniated disk can irritate nearby nerves and result in pain, numbness or weakness in an arm or leg. On the other hand, many people experience no symptoms from a herniated disk. Most people who have a herniated disk don’t need surgery to correct the problem.

Why it Occurs

In many cases, a herniated disk is related to the natural aging of your spine. In children and young adults, disks have a high water content. As we get older, our disks begin to dry out and weaken. The disks begin to shrink and the spaces between the vertebrae get narrower. This normal aging process is called disk degeneration.
Risk Factors
In addition to the gradual wear and tear that comes with aging, other factors can increase the likelihood of a herniated disk. Knowing what puts you at risk for a herniated disk can help you prevent further problems.
Gender. Men between the ages of 30 and 50 are most likely to have a herniated disk.
Improper lifting. Using your back muscles to lift heavy objects, instead of your legs, can cause a herniated disk. Twisting while you lift can also make your back vulnerable. Lifting with your legs, not your back, may protect your spine.
Weight. Being overweight puts added stress on the disks in your lower back.
Repetitive activities that strain your spine. Many jobs are physically demanding. Some require constant lifting, pulling, bending, or twisting. Using safe lifting and movement techniques can help protect your back.
Frequent driving. Staying seated for long periods, plus the vibration from the car engine, can put pressure on your spine and disks.
Sedentary lifestyle. Regular exercise is important in preventing many medical conditions, including a herniated disk.
Smoking. It is believed that smoking lessens oxygen supply to the disk and causes more rapid degeneration.

Symptoms

For most people with a herniated disk, low back pain is the initial symptom. This pain may last for a few days, then improve. It is often followed by the eventual onset of leg pain, numbness, or weakness. This leg pain typically extends below the knee, and often into the foot and ankle. It is described as moving from the back or buttock down the leg into the foot.
Symptoms may be one or all of the following:
• Back pain
• Leg and/or foot pain (sciatica)
• Numbness or a tingling sensation in the leg and/or foot
• Weakness in the leg and /or foot
• Loss of bladder or bowel control (extremely rare) This may indicate a more serious problem called cauda equina syndrome. This condition is caused by the spinal nerve roots being compressed. It requires immediate medical attention.
Not all patients will experience pain as a disk degenerates. It remains a great challenge for the doctor to determine whether a disk that is wearing out is the source of a patient’s pain

Treatment

In the majority of cases, a herniated lumbar disk will slowly improve over a period of several days to weeks. Typically, most patients are free of symptoms by 3 to 4 months. However, some patients do experience episodes of pain during their recovery.

Nonsurgical Treatment
Unless there are neurological deficits — muscle weakness, difficulty walking — or cauda equina syndrome, conservative care is the first course of treatment. Because it is not clear that nonsurgical care is any better than letting the condition resolve on its own, the focus is on providing pain relief.
Common nonsurgical measures include:
Rest. Usually 1-2 days of bed rest will calm severe back pain. Do not stay off your feet for longer, though. Take rest breaks throughout the day, but avoid sitting for long periods of time. Make all your movements slow and controlled. Change your daily activities so that you avoid movements that can cause further pain, especially bending forward and lifting.
Anti-inflammatory medications. Medicines like ibuprofen or naproxen may relieve pain.
Physical therapy. Specific exercises can strengthen your lower back and abdominal muscles.
Epidural steroid injection. In this procedure, steroids are injected into your back to reduce local inflammation. This can be done in the cervical area as well.
Of the above measures, only epidural injections have been proven effective at reducing symptoms. There is good evidence that epidural injections can be successful in 42-56% of patients who have not been helped by 6 weeks or more of other nonsurgical care.
Overall, the most effective nonsurgical care for lumbar herniated disk includes observation and an epidural steroid injection for short-term pain relief