Vascular ultrasonography is widely used in routine clinical practice today to address needs in various fields. Various issues are thought to be common to all areas of vascular ultrasonography, including equipment problems, examiner problems, and interpretation problems. The visualization performance of equipment has improved significantly, but there are problems with objectivity and differences in how images appear depending on a machine’s internal software. Between institutions, as well, there are concerns about different equipment and differences in test procedures depending on the doctor and technician supervising the vascular ultrasonography, the items thought to be necessary in the procedure, and the interpretation in making a diagnosis. To minimize differences between institutions, an educational system with a uniform purpose is needed for examiners, and their level of proficiency with the equipment needs to be increased. The interpretation of findings also needs to be evidence-based. Standard evaluation methods are a promising tool for uniformity.