Introduction <p>Leukocytoclastic vasculitis (LCV) is a small-vessel inflammatory condition that can rarely occur as an adverse drug reaction (ADR). Vancomycin-induced LCV is an uncommon but potentially serious complication, particularly in patients with pre-existing renal impairment.</p> Reason for the Report <p>This case report describes a patient with end-stage renal disease (ESRD) who developed LCV following vancomycin therapy for a catheter-related infection. The report emphasizes the diagnostic challenges and the importance of prompt and appropriate management of this ADR.</p> Case summary <p>A 53-year-old male with ESRD developed skin lesions and systemic symptoms after receiving vancomycin for catheter-related infection. The diagnosis of LCV was confirmed through a skin biopsy. Discontinuation of vancomycin with initiation of mycophenolate mofetil and prednisolone resulted in significant improvement in the patient’s condition.</p> Outcome <p>The presented case underlines the recognition of vancomycin-induced LCV, especially in the vulnerable population of patients with ESRD. It emphasizes the need for a high degree of suspicion of drug-related adverse events and early diagnosis and management to achieve good outcomes.</p> Clinical trial number <p>Not applicable.</p> Graphical Abstract <p></p>