Tubal adhesion or tubal lumen occlusion has become the main cause of secondary infertility in women, which is mostly caused by adhesion or occlusion of the interstitial part of the fallopian tubes or infection of the uterine or pelvic cavity due to uterine surgical operations. The more commonly used treatments are selective tubalography (SSG) and recanalization (FTR), hysteroscopic surgery or laparoscopic adhesion disintegration, and tubal ventilation and/or fluidization are still used in some hospitals. Studies have shown that tubal recanalization can be achieved by non-surgical means in 80% of patients, and SSG and FTR for tubal obstruction have been widely used in the clinic due to their simplicity, safety, minimally invasive nature and cost-effectiveness. Conventional diagnosis of uterine and tubal imaging can easily cause spasm of tubal sphincter and pain of dilatation of uterine cavity, and cannot increase the squeezing and separating effect of contrast agent on fallopian tube, and it cannot identify the causes of tubal obstruction, especially for the diagnosis of the causes of tubal interstitial and isthmus obstruction. SSG overcomes the above shortcomings by utilizing the recanalization effect caused by liquid high-pressure injection (including the injection of contrast agent during imaging and the injection of recanalization fluid after successful recanalization), which directly increases the hydrostatic pressure in the fallopian tube to clear the tissues, and the tubes that cannot be completely recanalized can be further cleared by using the tubal recanalization catheter and sending in the microfilament to further clear the treatment. The effect of this technique on proximal tubal obstruction is much better than that of distal tubal obstruction, while the obstruction in the juxtapical abdomen and other distant parts of the fallopian tubes is not suitable for guidewire recanalization because the guidewire is not easy to reach this part, forcible recanalization will easily lead to perforation of the fallopian tubes, and there is a danger of damage to the ovary caused by the guidewire piercing the umbilical end, resulting in bleeding, and affecting the function of umbilical end in “picking up the eggs”. Allergy to contrast medium, tubal perforation and muscle wall damage, uterine cavity infection, abdominal pain and vaginal bleeding are the main adverse effects. The rate of postoperative re-adhesion has been reported to be as high as 28%. The high rate of recanalization and low rate of conception may be related to this. Therefore, after recanalization, patients should be encouraged to have coitus during the first ovulation time after the operation, and actively strive for conception, and carry out fluid therapy after the operation to keep the tubes open as much as possible, so as to avoid tubal reobstruction. For those who have not conceived after 6 months of postoperative recheck for tubal patency, laparoscopy should be performed as early as possible to exclude the possibility of pelvic adhesions.