Complex regional pain syndrome—A forgotten entity

Complex Regional Pain Syndrome (CRPS) is a painful condition characterized by regional pain that is disproportionate temporality and severity to the usual course of any known cause. The pain is regional which is not in a specific nerve territory or dermatomal distribution. Judicious clinical suspicion and targeted investigations are necessary for correct diagnosis and appropriate treatment. We hereby report a case of a young lady with CRPS who presented to us with unilateral upper limb pain, swelling, discoloration and muscle atrophy without any history of inciting injury.