from Elizabeth Quinn http://sportsmedicine.about.com/cs/back/a/back4.htm
Spinal Intervertebral discs image
are small, round cushions between the vertebrae of the spinal column that
have a tough, fibrous tissue on the outside and a watery, gelatinous
material inside. The purpose of these discs is to cushion each vertebrae
during movement. A herniated disc image
is a disk that has bulged or ruptures from its proper place. It may press
on nearby nerves and cause severe pain.
Cause of A Herniated Disc?
A herniated disk occurs when the disc is damaged by a number of
situations. Some of the most common causes of a disc injury are:
A fall or accident
Repeated straining of your back
A sudden strain on the back from lifting or twisting violently
Degeneration of the disc from aging
Spontaneous herniation can occur without any specific injury
When the disc is damaged, the soft rubbery center of the disc squeezes
out through a weak point in the fibrous outer layer, causing a bulge that
often presses on nearby nerves. (see picture below, article continues
after)
Symptoms of a herniated disc may begin suddenly or gradually.
Sudden aching in the back or neck or being unable to straighten without
extreme pain are signs of herniated disc problems. Numbness, tingling, or
weakness in one or both arms is another sign of herniated discs.
Other common symptoms of a herniated disc include:
Pain that Radiates to the Legs
Pain that travels to the legs or feet may feel like a shooting pain or
electric shock. This type of pain may be from a disc pressing against
the nerve.
Numbness or Tingling
Any sensation of numbness, tingling or the feeling of a part of
the body 'falling asleep' can indicate a disc problem. This
sensation may occur in the legs or areas surrounding the spine.
Muscle Weakness
If the nerve is involved, it may interfere with muscle
contractions and reflexes.
Bladder Problems
Problems with bladder or bowel function is a serious
symptom of a herniated disc that should be treated and
evaluated immediately.
All of these symptoms may be caused by a herniated disc
pressing against the spinal nerves.
A doctor can often diagnose a herniated disc by a physical
examination that tests sensation, muscle strength, and
reflexes. The following diagnostic tests are often necessary
to diagnose a herniated disk:
x-rays
CT scan
magnetic resonance imaging (MRI)
electromyography
myelography
diskography
Treatment of A Herniated Disc
Conservative treatment may relieve most cases of herniated
disc pain and allow the body to heal the disc over time. Early
treatment may include:
Rest. By resting the back there is time for the body to
reabsorb the herniated part of the disk and the heal
The acute pain from a herniated disk should go away within
a few weeks, but some pain may remain for a few months.
Backaches may be common in those with a history of disk
problems, therefore continual back strengthening and
stretching exercises are recommended throughout life. Good
biomechanics are also essential to protect the spine when
lifting exercising.
Prevention includes:
Using good posture and proper lifting techniques
Avoid standing in one place for long periods of time
Stretch often when sitting for long periods of time
Use chairs with good back support
Sleep on a firm mattress
Sleep on your side not your stomach
Stop and rest often while on long road trips
Avoid returning too quickly to activity or exercise or you
may risk aggravating your injury, which could lead to
permanent damage.