Nowadays, due to its high sensitivity and specificities, the ultrasound is the golden standard in the diagnosis of the diseases of the testes and scrotum since many conditions of that region can be included in the same clinical picture. This retrospective study provides an overview of all ultrasound findings of the testes and scrotum at the Institute for Diagnostic and Interventional Radiology of the UHC Zagreb in the course of one calendar year. In 2017, 853 men were examined, out of which 81 % were below 50 years of age. In most of the findings, namely 79 % of patients, there were deviations from the normal anatomical structure. The findings of varicocele, present in 35.7 % of patients, and cysts, present in 30.1 % of patients, are the most frequent. Due to the anatomical principles, the left varicocele makes up 86 %, while cases of isolated right-sided varicoceles makes up only 4 %. 92 % of benign cystic lesions were found in the epididymis, and the rest of them in the testis. Acute conditions make up 11 % of findings, among which inflammations (7.7 %), torsions (1.9 %), tumours (1 %) and conditions indicative of a traumatic etiology (0.4 %) are prevalent. There is a significant number of orchidectomised men (n=97) in the control group, most of which have a normal result for the remaining testis (62 %), with calcificates, varicocele and cysts being among the most frequent conditions that deviate from the norm. Male sterility is an increasingly frequent problem in the world. 4 % of patients were examined with an incidental diagnosis of sterility, 27 % of them with a normal ultrasound finding, but with a deviation in most of them. Varicocele, hypotrophy of the testes and calcificates are the most prevalent in those patient referred for sterility.