Diabetic amyotrophy also known as Bruns-Garland syndrome is diabetic neuropathy subtype affecting the lumbosacral nerve roots and peripheral nerves. There is an ongoing debate on the pathophysiology behind this condition whether is it ischaemic, metabolic (hyperglycaemia) or inflammatory. A 36-year-old man with uncontrolled diabetes mellitus complained of unprovoked weight lost and right proximal thigh discomfort with weakness for one week duration. In neurological examination, his right hip flexion was at medical research council (MRC) grade 3, right hip extension MRC grade 4, his knee and ankle flexion and extension are normal (MRC grade 5). The muscle tones and reflexes were normal. Sensation and proprioception were intact bilaterally. Nerve conduction study (NCS) showed markedly reduced amplitude of the compound muscle action potentials and sensory nerve action potentials, while conduction velocities show only mild slowing. He was started on a course of oral prednisolone 10 mg daily and improved gradually. At three months follow-up, his right lower limb power has recovered fully and he can walk without any assistance. Diabetic amyotrophy was confirmed by suggestive clinical features supported by electrophysiological findings of the affected nerves. This condition is due to metabolic derangement and vasculopathy or immune mediated nerve injury. So, the healthcare providers should be aware about this rare complication of diabetes.