The internal segment of the ureteral wall is the wall of the ureter as it passes through the wall of the bladder.
When the ureter is anatomically segmented, it can be divided into three parts: the internal segment of the ureter wall, the abdominal segment of the ureter, and the pelvic segment of the ureter. The internal segment of the ureter wall is also called the intravesical segment of the bladder wall because it penetrates into the bladder wall. The ventral segment of the ureter is from the junction of the ureter and the renal pelvis to the iliac vessels, while the pelvic segment of the ureter is from the junction of the iliac vessels and the ureter to the bladder wall area.
The ureter is also clinically divided into three segments, the upper ureter, the middle ureter, and the lower ureter. The upper ureter is the area from the ureter’s junction with the renal pelvis to the upper edge of the sacroiliac joint, while the middle ureter is the area between the upper and lower edges of the sacroiliac joint, and the lower ureter is the area from the sacroiliac joint to the inner portion of the bladder wall.
In summary, if ureteral disease is present, you should seek medical attention.