Left untreated, nerve damage may worsen over time. It can sometimes start in the nerves farthest from the brain and spinal cord -- like those in the feet and hands. Then it may move up into the legs and arms.
When to see a doctor. If you experience weakness, tingling, numbness or a total loss of feeling in a limb, see your health care provider to determine the cause. It's important to treat peripheral nerve injuries early.
Symptoms can range from mild to disabling, but are rarely life-threatening. The symptoms depend on the type of nerve fibers affected and the type and severity of damage. Symptoms may develop over days, weeks, or years. In some cases, symptoms improve on their own and may not require advanced care.
As a specialist in peripheral nerve surgery, Dr. Seruya wants his patients to know that after a period of 12-18 months nerve damage can become permanent.
An MRI may be able help identify structural lesions that may be pressing against the nerve so the problem can be corrected before permanent nerve damage occurs. Nerve damage can usually be diagnosed based on a neurological examination and can be correlated by MRI scan findings.
The outlook for peripheral neuropathy varies, depending on the underlying cause and which nerves have been damaged. Some cases may improve with time if the underlying cause is treated, whereas in some people the damage may be permanent or may get gradually worse with time.
Stage Four: Constant Numbness
It indicates that the nerves are dying. While the relief may be nice, it also shows that much of the small nerve fibers have disintegrated. The larger fibers are now beginning to become permanently damaged, too.
Seddon2 classified nerve injuries into three broad categories; neurapraxia, axonotmesis, and neurotmesis.
PN was strongly associated with earlier mortality. Mean survival time for those with PN was 10.8 years, compared with 13.9 years for subjects without PN. PN was also indirectly associated through impaired balance.
Nerve conduction studies, including an Electromyogram (EMG) may be performed on individuals suffering with nerve pain symptoms. These studies use electrical impulses to determine the level of damage. A final diagnosis will be made by your physician through the help of one or all of these tests.
Injury to a nerve can stop signals to and from the brain. This can cause muscles to stop working properly and result in loss of feeling. In many cases, nerve injuries can be treated to improve outcomes. However, nerves are very complex structures and do not recover as well as ligaments, tendons, and bones.
The pain, tingling, numbness and other discomforts of peripheral nerve injuries can often be treated successfully with physical therapy and other nonsurgical methods. But in some cases, surgery offers the best chance of lasting relief.
Trigeminal neuralgia (TN), also known as tic douloureux, is sometimes described as the most excruciating pain known to humanity. The pain typically involves the lower face and jaw, although sometimes it affects the area around the nose and above the eye.
The most severe type of nerve injury is an avulsion (A), where the nerve roots are torn away from the spinal cord. Less severe injuries involve a stretching (B) of the nerve fibers or a rupture (C), where the nerve is torn into two pieces.
Axonotmesis is a more severe grade of nerve injury than neurapraxia, and neurotmesis is the most severe grade of peripheral nerve injury.
Nerves recover slowly, and maximal recovery may take many months or several years. You'll need regular checkups to make sure your recovery stays on track. If your injury is caused by a medical condition, your doctor will treat the underlying condition.
Nerve pain often feels like a shooting, stabbing or burning sensation. Sometimes it can feel as sharp and sudden as an electric shock. You may be very sensitive to touch or cold.
A covering called the myelin sheath protects most nerves in the body. Usually, stretching or bruising injuries damage the nerve fibers without damaging the myelin sheath. The nerve fibers can grow back slowly. If the myelin sheath is damaged, as may occur with cutting injuries, the nerves can't heal themselves.
Tingling or burning in the arms and legs may be an early sign of nerve damage. These feelings often start in your toes and feet. You may have deep pain. This often happens in the feet and legs.
To find out, conclusively, if your nerves are damaged, you need to see a neurologist. He or she will perform tests to determine the health of your muscles and nerves. If there is a problem, the doctor will explain the reason for the damage and its extent.
Does an MRI scan show nerve damage? A neurological examination can diagnose nerve damage, but an MRI scan can pinpoint it. It's crucial to get tested if symptoms worsen to avoid any permanent nerve damage.