Neuralgia pain is pain that occurs along a damaged nerve. People often describe it as a burning or stabbing pain which can be quite severe, as stated by Healthline. Although the cause of neuralgia pain is often unknown, its underlying cause is always nerve damage.
A myelin sheath, which is a protective coating, protects each of the body’s nerves, as noted by Healthline. If this protective coating is worn away or damaged in some way, then the severe pain of neuralgia occurs. Sometimes growing older causes neuralgia, but infections, including shingles, syphilis, HIV or Lyme disease, cause other cases. Multiple sclerosis is also a cause of neuralgia, particularly when the patient feels the pain in the facial region.
When the myelin wears away due to pressure from a tumor, blood vessel, ligament or bone, neuralgia pain can result, according to Healthline. Diabetics tend to suffer from neuralgia due to the myelin damage that is inflicted by the excess glucose in the body associated with the disease.
Less commonly, chemical irritation, chronic kidney disease or the rare blood disease porphyria cause neuralgia pain, as reported by Healthline. Certain medications are also associated with neuralgia, including vincristine, paclitaxel and cisplatin.