Epididymitis can be detected by ultrasound. Epididymitis is a non-specific infection of the male reproductive system, and its clinical manifestations are discomfort of the affected scrotum, localized pain, and accompanied by general discomfort or high fever and other symptoms, and some patients may also be accompanied by confined enlargement of the epididymis, which is harder, and has a nodular change when touched, and so on. Epididymitis patients rely solely on palpation and questioning, it is usually difficult to distinguish, patients can be observed through ultrasound testicular, epididymal, spermatic vein whether there are abnormalities, epididymitis ultrasound can be found epididymal enlargement, echogenicity becomes low, the internal echogenicity is not homogeneous, can be seen in the case of abundant blood flow signals and so on. In addition, patients can also confirm the diagnosis through laboratory tests, such as pathogen culture, blood routine, etc., CT examination and so on.