Abstract Background Adrenal rest tumours can appear in early childhood in patients with congenital adrenal hyperplasia(CAH). The common cause of infertility in males with CAH is testicular adrenal rest tumours (TARTs). Ovarian adrenal rest tumour (OART) and polycystic ovaries (PCO) can impair the ovarian function in female patients with CAH. Objective Detect the prevalence of gonadal changes by imaging among patients with CAH andassess the patients' radiological findings in relation to their hormonal profile. Patients and Methods This observational, cross sectional study was conducted on 50 patients with CAH. Testicular ultrasonography was done to male patients and magnetic resonanceimaging (MRI) of the pelvis was done to female patients. Data on prescribed glucocorticoid dose and serum levels of 17- hydroxyprogesterone (17-OHP), androstenedione (Andro) and ACTH were obtained from medical records within endocrinology clinic, Children's Hospital, Ain Shams University. Results TARTs were detected in 10/20 (50%) of CAH patients. There was significant relationbetween presence of TARTs and each of weight standard deviation score (SDS), body mass index (BMI), BMI SDS and current bone age (p = 0.028, 0.046, 0.017 and 0.023; respectively). There was no significant relation between presence of TARTs and the laboratory parameters or the treatment received (p > 0.05). There was significant correlation between Tanner testicular volume and mean testicular volume by ultrasound (p < 0.001). Only one female patient had bilateral polycystic ovaries (prevalence 3.3%) and none had ovarian adrenal rest tumours. Conclusion The prevalence of TARTs in male patients in our study is high (50%), highlighting the importance of TARTs screening in children with CAH. We would suggest that routine ovarian imaging in CAH females is not indicated. However, when ovarian dysfunction is present, ovarian imaging is advised.