What are the causes of ureteral obstruction and lumbocrural pain

summary

Ureteral obstruction is a relatively high incidence rate in the elderly and it is also very painful for the patients. So we should pay more attention to this disease. Let's talk about the causes of ureteral obstruction and the causes of lumbago and leg pain.

What are the causes of ureteral obstruction and lumbocrural pain

The first is the internal factors of the lumen. The internal factors of the lumen mainly include UPJ stenosis, valves, polyps and high ureteral orifice. Among them, stenosis is the common cause of UPJ obstruction (accounting for 87.2%). The main manifestations are hypertrophy of the muscular layer and hyperplasia of fibrous tissue at the UPJ. The length of the narrow segment is about 2cm, and the cross-sectional diameter is only 1-2mm. It is often accompanied by high ureteral orifice.

Second, the external factors of the lumen, the most common reason is that the vagal vessels or accessory vessels from the main renal artery or abdominal aorta supply the lower pole of the kidney, cross the UPJ to make it compressed, and make the ureter or renal pelvis hang above the vessels. In addition, the compression or adhesion of the fiber cord leads to UPJ tangle, distortion or high attachment.

Third: functional obstruction usually can be manifested as dynamic dysfunction of UPJ, which is characterized by no obvious intraluminal stenosis and extraluminal compression factors in UPJ, ureteral catheter can pass smoothly in retrograde urography, but there is obvious hydronephrosis, UPJ valve is a congenital fold, which can contain muscle. Polyps are usually sunflower shaped.

matters needing attention

If it is because of ureteral obstruction caused by low back pain, it should be timely to seek help from the doctor, because this is a sequela, if not treated, it may make the condition more and more serious, or even cause other aspects of the disease.