Tubal LigationvsSpermicide

A side-by-side comparison of two birth control methods — efficacy, cost, how they work, and who shouldn't use them.

Side-by-side comparison

Method	Female Sterilization A permanent surgical procedure that blocks or removes the fallopian tubes to prevent pregnancy.	Spermicide A chemical gel, foam, or film inserted into the vagina before sex to disable sperm, available over the counter.
Efficacy	99.5% typical use Most effective: over 99 out of 100 people successfully prevent pregnancy per year.	79% typical use Least effective: under 90 out of 100 people successfully prevent pregnancy per year.
Cost	$0–$6,000 Insurance: Usually	$1–$3 /per unit Insurance: Varies
Duration	Permanent	Single use (effective for 1 hour; duration varies by formulation, check product label)
Reversibility	Permanent	Reversible
STI Protection	No	No
How it works	Surgical disruption (clipping, banding, cauterization, or complete removal) of the fallopian tubes prevents eggs from reaching the uterus and sperm from reaching the egg.	A chemical (usually nonoxynol-9) immobilizes or kills sperm on contact. Inserted into the vagina before sex.
Prescription	Required Prescription required	OTC Over-the-counter
Side effects	Surgical risks (bleeding, infection, organ damage) Anesthesia side effects Ectopic pregnancy (small but serious risk if failure occurs)	Vaginal or penile irritation Increased risk of UTI Allergic reaction (rare)
Who shouldn't use this	Medical instability for general anesthesia or laparoscopy Uncertainty about future fertility desires	Sensitivity to nonoxynol-9 Active vaginal irritation or infection High risk of HIV exposure (frequent use may increase transmission risk)

Key differences

Female Sterilization is more effective (99.5% vs 79% typical use). Female Sterilization duration: Permanent. Spermicide duration: Single use (effective for 1 hour; duration varies by formulation, check product label). Female Sterilization is permanent; Spermicide is reversible. Female Sterilization requires a prescription; Spermicide does not. Female Sterilization: costs $0–$6,000. Spermicide: costs $1–$3 per unit.