Tehran University of Medical Sciences Journal of Arthropod-Borne Diseases 2322-1984 13 4 2019 08 03 416 419 Mohammad Hassan Aelami Department of Pediatrics and Hand Hygiene and Infection Control Research Center, Imam Reza Hospital, Mashhad University of medical Sciences, Mashhad, Iran Alireza Khooei Department of Pathology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran Hamidreza Ghorbani Kidney Transplantation Complications Research Center, Mashhad University of Medical Sciences, Mashhad, Iran Farrokh Seilanian-Toosi Department of Radiology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran Elham Poustchi Department of Parasitology and Mycology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran Bibi Razieh Hosseini-Farash Department of Parasitology and Mycology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran AND Cutaneous Leishmaniasis Research Center, Mashhad University of Medical Sciences, Mashhad, Iran, Mashhad, Iran Elham Moghaddas Department of Parasitology and Mycology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran 2019 12 02 Canthariasis is a human disease caused by infestation of beetle larvae. We report here an unusual cause of urogenital in­fection due to Tenebrio molitor in a 10-year-old boy suffering from severe and intermittent suprapubic pain from Nehban­dan City, Northeastern Iran in 2018. After 9 months, three larvae were excreted. Keratinization of bladder wall was ob­served in histopathology. All laboratory evaluations were normal except for presence of microscopic hematuria. This re­port implicated that T. molitor could infest bladder accidentally and cause canthariasis and clinical symptoms that may lead to severe pain and bladder inflammation and hyperemia. https://jad.tums.ac.ir/index.php/jad/article/view/1211 https://jad.tums.ac.ir/index.php/jad/article/download/1211/470