Bladder cancer, if described by ultrasound, needs to include: first, the location of the mass, located in the left wall, right wall, or parietal wall of the triangle. Second, description of its size, which usually needs to be described using its transverse diameter and long axis to initially measure the size of the mass. Third, describe whether the number is single or multiple. Fourth, describe whether there is a change in mobility with body position. Fifth, describe the color flow within it, such as whether there is still a Doppler color flow signal within it, to determine whether it is a tumor or some other material such as a blood clot within the bladder. A comprehensive description is that ultrasound reveals a mass of about a few centimeters in size in one wall of the bladder that does not move with position, has abundant colored blood flow signals visible within it, and is single in number with no tumor seen in other walls or similar tumor protrusion signals visible in other walls.