Tehran University of Medical Sciences Immunology and Genetics Journal 2645-4831 9 1 2025 12 22 223 223 Farid Imanzadeh Hepatology and Nutrition Research Center, Research Institute for Children's Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran Samaneh Vahdat nia Hepatology and Nutrition Research Center, Research Institute for Children's Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran 2025 12 15 2025 12 15 The most prevalent reason of trichobizoar diseases are hair pulling (trichotillomania) and hair eating (trichophagia). It occurs most often in women under 30, which associated with trichotillomania. Trichobiosis of the stomach is very rare. If diagnosed on time and treated successfully, it does not cause considerable complications. In this study, we report a case of a 10-years-old female with epigastric pains for 2 months. The patient underwent diagnostic endoscopy due to a palpable mass in her epigastrium revealing gastric trichobezoar for which, she underwent surgical intervention. Detailed history taken from her revealed the history of trichotillomania and trichophagia since 3 years of age. https://igj.tums.ac.ir/index.php/igj/article/view/223