ABSTRACT
OBJECTIVE@#Testicular size is an important determinant of sexual maturity in males. The authors determined the average testicular volume of patients in different age groups who underwent scrotal ultrasonography at the Jose R. Reyes Memorial Medical Center (JRRMMC).@*METHODS@#A database search was performed using the SoliPacs system from January 2016 to October 2020. Ultrasound reports including a scrotal examination were included. Testicular measurements, i.e., length, width, and height were recorded. Ultrasound reports with abnormal testes findings were excluded from the study.@*RESULTS@#A total of 769 patients fulfilled the search criteria. A total of 1354 testes were included in the study after excluding 184 testes with ultrasonographic testicular abnormalities. Testicular size began increasing in size after the age of 10, starting at an average size of 1.9 ml, reaching adult size (15.1 ml) at 17 years of age. The average testicular size, around 17 ml remains the same throughout adulthood (17 to 60 years of age) and begins to decline during senescence (>60 years of age). @*CONCLUSION@#Scrotal ultrasonography is a useful and convenient tool in determining testicular volume. The results of this study demonstrate the average adult testicular volume (17 ml) among Filipinos sampled in JRRMMC, as well as the trends in volume growth and decline according to age.