Tubal obstruction is a common cause of infertility, accounting for about 1/3 of infertility patients, and is a difficult problem in infertility diagnosis and treatment. For patients with proximal tubal obstruction, tubal lavage and drug injection, commonly referred to as “lavage”, has been used in the past, but the efficacy is difficult to determine. Tubal recanalization is performed by using catheter and guidewire technique under X-ray fluoroscopy to deliver the catheter and guidewire to the uterine horn through the cervix, and to recanalize the blocked tubes by the dilating effect of the guidewire and catheter and the flushing effect of the medicine. This technique is simple and effective, and according to the literature, the success rate of tubal recanalization is more than 95%, which is satisfactory. Moreover, as a minimally invasive technique, the procedure is less invasive, similar to tubal angiography, and less costly. It is the best treatment option for patients with proximal tubal obstruction. A series of post-operative treatments (such as lavage, anti-inflammatory, herbal enemas, etc.) are needed to keep the fallopian tubes open and increase the chances of conception.