Coil Hysteroscopic Tubal Occlusion in the Treatment of Hydrosalpinx

Inclusion Criteria: 1. Have unilateral or bilateral hydrosalpinxs as evidenced by HSG. 2. laparoscopic surgery was considered to be contraindicated because of ex-tensive pelvic adhesions. 3. Are willing to undergo a hysterosalpingogram (HSG) 1 months after fiber platinum coil placement to confirm proximal tubal occlusion. 4. Are willing to participate in this clinical study .Are able to comprehend and give informed consent for participation in this study. 5. Have read, understood and signed an informed consent form . Exclusion Criteria: 1. Active or recent upper or lower pelvic infection 2. Known hypersensitivity to nickel as confirmed by skin test 3. Known allergy to contrast media Pregnancy or suspected pregnancy 4. Evidence of intrauterine abnormalities such as submucous fibroids, polyps, intrauterine adhesions or presence of a uterine septum 5. Poor general or gynecologic health 6. Inability or refusal to provide informed consent