What are the causes of tubal obstruction in the isthmus of the fallopian tube?

The causes of isthmic obstruction of the fallopian tube include inflammatory infection, surgical factors, and fallopian tube barrier, among others.

1. Inflammatory infection: If a woman has inflammatory diseases such as pelvic inflammatory disease or tuberculous peritonitis, when the inflammation affects the fallopian tube, it can cause interstitial or follicular fallopian tube inflammation. Once this condition worsens, it can lead to pathological changes in the fallopian tube lining, resulting in obstruction, abdominal pain, and other manifestations.

2. Surgical factors: Isthmic obstruction of the fallopian tube is related to surgical factors, such as fallopian tube sterilization and ligation, fallopian tube mucous plug procedure, etc., which can cause fallopian tube obstruction, leading to isthmic obstruction and affecting fertility.

3. Fallopian tube barrier: Some women have a history of appendicular perforation, which can significantly increase the probability of fallopian tube damage. This is mainly because the appendix and fallopian tube are close in proximity, and appendicitis can easily affect the fallopian tube, causing an inflammatory reaction in the fallopian tube, ultimately leading to isthmic obstruction of the fallopian tube.

Other causes of isthmic obstruction of the fallopian tube include gynecological tumors. Women should pay attention to the health of their fallopian tubes and choose medication or surgical treatment measures based on the cause of the disease after onset.