Juvenile nasopharyngeal angiofibroma (JNA) is a rare, benign, locally aggressive vascular tumour of the nasopharynx. JNA predominantly affects adolescent males, with only a handful of cases reported in children under 6 years old. The exact mechanism underlying JNA is poorly understood, however an androgen-driven pathogenesis has long been speculated due to its propensity to affect adolescent males. Surgical resection is the most common treatment for JNA. Due to the limited number of cases in prepubescent males, the natural progression of JNA in this population is poorly understood. In this article we present a case of JNA in a five-year-old male found during adenoidectomy. The diagnosis was subsequently confirmed with magnetic resonance imaging. However, when the patient presented to a tertiary centre for surgical treatment, the mass had spontaneously involuted to a small lump, which was proven on histology as JNA. While cases of spontaneous involution of JNA post-intervention have been reported in the literature, to our knowledge this is the first documented case of spontaneous involution of JNA without any treatment.