Some types of tubal sterilizations are not technically reversible such as distal fimbriectomy and trans-cervically placed proximal coils (Essure).

• 某些类型的结扎绝育术在技术上来说是不可逆的，如输卵管伞端切除术和经宫颈置入输卵管近端栓子（Essure）。