Generally speaking, tubal obstruction is generally caused by tubal inflammation, which may include simple salpingitis, hydrosalpinx and suppurative salpingitis. The main clinical manifestations are lower abdominal pain and abnormal leucorrhea, but these symptoms are not specific, that is to say, having these symptoms does not mean that there is tubal obstruction, and it is impossible to diagnose whether there is tubal obstruction simply according to the symptoms. I suggest that the diagnosis of tubal obstruction needs to be examined, and even if it is examined, it may not be completely diagnosed.