Phantom limbs why

6 thg 5, This phantom limb phenomenon has been found to be caused by the changes occurring in the cortex of the brain following amputation of a limb. 11 thg 6, Many experts believe phantom pain may be at least partially explained as a response to mixed signals from the brain. After an amputation, areas. Phantom limb sensation is a diagnosis of exclusion. This means other possible causes must be ruled out. These include poor blood flow, infection, nerve tumor.