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In page Tubal ligation:

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Tubal ligation through blocking or removing the tubes may be accomplished through an open abdominal surgery, a laparoscopic approach, or a hysteroscopic approach.[1] Depending on the approach chosen, the patient will need to undergo local, general, or spinal (regional) anesthesia. The procedure may be performed either immediately after the end of a pregnancy, termed a "postpartum" or "postabortion tubal ligation", or more than six weeks after the end of a pregnancy, termed an "interval tubal ligation".[2] The steps of the sterilization procedure will depend on the type of procedure being used.[citation needed] (See Tubal ligation methods below.)