ISSN: 2320-5407 Int. J. Adv. Res. 5(11), 1176-1181 1176 Journal Homepage: -www.journalijar.com Article DOI:10.21474/IJAR01/5881 DOI URL: http://dx.doi.org/10.21474/IJAR01/5881 RESEARCH ARTICLE DETERMINING THE NORMAL SIZE AND VALUES OF THE TESTICLES IN ADULT POPULATION IN THE WESTERN REGION, SAUDI ARABIA. Rawan Alsahafi 1 , Eman Alsahafi 2 , Ahmed Abduljabbar 3 and Mohammad Wazzan 3 . 1. Medical Intern, College of Medicine, King Abdulaziz University Hospital, Jeddah, Saudi Arabia. 2. Diagnostic Radiology Resident, College of Medicine, King Abdulaziz University Hospital, Jeddah, Saudi Arabia. 3. Diagnostic Radiology Consultant, King Abdulaziz University Hospital, Jeddah, Saudi Arabia. …………………………………………………………………………………………………….... Manuscript Info Abstract ……………………. ……………………………………………………………… Manuscript History Received: 16 September 2017 Final Accepted: 18 October 2017 Published: November 2017 Key words:- Size and values, testicles, adult, western region, Saudi Arabia. Background: The testis is an essential organ of the male reproductive system. The aim of this study is to obtain reference data for testicular volume measured by ultrasound in King Abdulaziz University Hospital patients. Method: This was a retrospective study conducted at King Abdulaziz University Hospital, Jeddah , and included all healthy men with normal morphology and no associated clinical suspicious of orchitis or varicocele. Patients age ≥18 years who underwent a scrotal ultrasound at King Abdulaziz University Hospital from April,2014 through October, 2016. Result: The mean age score for the 522 participants was 41.2±16.5 rang (18-89). For right testicles the mean scores of longitudinal, anterioposterior, transverse diameters and the testicular volume were respectively 4.2±0.6, 2.7±0.5, 1.9±0.4 and 12.0±5.0 respectively. While for left testicles, the mean scores of longitudinal, anteroposterior, transverse diameters and the testicular volume were respectively 4.1±0.7, 2.6±0.5, 1.9±0.4 and 11.2±4.7 respectively Conclusion: The current study provides reference data for testicular volume measured by ultrasound in King Abdulaziz University Hospital patients. Further studies need to be conducted on multicenter bases to compare between the different methods of measurements in order to provide comprehensive description of testicular volume suitable for developing the normative assessment. Copy Right, IJAR, 2017,. All rights reserved. …………………………………………………………………………………………………….... Introduction:- The testis is an essential organ of the male reproductive system. Testicular glands are the place where sperm and testosterone are produced. The seminiferous tubules comprise approximately 70% to 80 % of the testicular mass. [1] Many studies have shown that reduction in testicular size is mainly caused by the decrease of the seminiferous tubules due to primary dysplasia or secondary damage and can, therefore, result in disturbed spermatogenesis. [1] So, the testicular function has a direct correlation with testicular volume. [2]. Corresponding Author:- Rawan Alsahafi. Address:-Medical Intern, College of Medicine, King Abdulaziz University Hospital, Jeddah, Saudi Arabia.