Gene Makeup May Help Explain Amputees' Chronic Pain - Soldiers with certain gene variations seem more likely than others to have chronic pain after limb amputation, said a study presented at the annual meeting of the American Society of Anesthesiologists in San Francisco.
Researchers analyzed blood samples from 49 U.S. soldiers who had persistent pain after amputation and identified hundreds of previously unknown gene variations that could play a role in the soldiers' chronic pain.