As with other subjective experiences, such as love, fear, or anger, there's no way to objectively measure pain. We asked Sean Mackey, MD, PhD, chief of the Pain Management Division and associate professor of anesthesia at Stanford University School of Medicine, to explain the unpleasant sensation we all feel in different ways.
Although the limb is no longer there, the nerve endings at the site of the amputation continue to send pain signals to the brain that make the brain think the limb is still there. Sometimes, the brain memory of pain is retained and is interpreted as pain, regardless of signals from injured nerves.
What Are the Symptoms of Phantom Limb Pain?
In addition to pain in the phantom limb, some people experience other sensations such as tingling, cramping, heat, and cold in the portion of the limb that was removed. Any sensation that the limb could have experienced prior to the amputation may be experienced in the amputated phantom limb.
How Is Phantom Limb Pain Treated?
Successful treatment of phantom limb pain is difficult. Treatment is usually determined based on the person's level of pain, and multiple treatments may be combined. Some treatments include: