Background: The formation of neuromas, a fusiform swelling of a nerve or nerve ending, is a well documented response to limb amputation. Likewise, Residual Limb Pain (RLP), pain felt from the remaining portion of the amputated limb, is common among amputees. Neuromas are found in more than 90% of lower extremity amputations, of which 30-50% are pain-generating for the patient . And while surgical techniques reveal the commonly held belief that neuroma formation is one of the causal drivers behind RLP, there has been no study to demonstrate that the two events - namely the magnitude of neuroma formation and the magnitude of pain experienced by amputees - are correlated. If this correlation, or lack thereof, were elucidated with the use of ultrasonography, this would provide the preliminary data which could lead to further studies in neuroma minimization and/or proliferation.