OBJECTIVES: In immunocompetent person, varicella-zoster virus (VZV)-induced myelitis is rare and the lesion usually comprise focal spinal cord segment. VZV-induced hemorrhagic myelitis with lesions comprising longitudinal spinal cord has never been reported. METHODS: We report a 15-year-old male patient who developed acute flaccid quadriplegia, days after a common cold. One week after the quadriplegia developed, he presented a typical herpes zoster on the lateral side of his left waist. RESULTS: IgG antibody for VZV was detected in cerebrospinal fluid and the spinal cord magnetic resonance imaging findings were consistent with that of small vessel vasculitis. Treatment with acyclovir and corticosteroids resulted in no significant clinical improvement. CONCLUSIONS: In this report, we wanted to emphasize the hemorrhage, the extensiveness of inflammatory changes induced by VZV in spinal cord. It is suggested that VZV should be considered as a possible cause of a severe hemorrhagic myelitis even in immunocompetent adolescent.