Tubal LigationvsFertility Awareness

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.	Fertility Awareness Tracking body signs like temperature and cervical mucus to identify fertile days and avoid unprotected sex then.
Efficacy	99.5% typical use Most effective: over 99 out of 100 people successfully prevent pregnancy per year.	Least effective see details Least effective: under 90 out of 100 people successfully prevent pregnancy per year.
Cost	$0–$6,000 Insurance: Usually	$0–$100 /monthly Insurance: Varies
Duration	Permanent	Ongoing daily tracking
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.	Track basal body temperature, cervical mucus, and cycle length to identify the fertile window. Avoid unprotected sex or use backup contraception on fertile days.
Prescription	Required Prescription required	OTC No prescription / OTC
Side effects	Surgical risks (bleeding, infection, organ damage) Anesthesia side effects Ectopic pregnancy (small but serious risk if failure occurs)	None reported
Who shouldn't use this	Medical instability for general anesthesia or laparoscopy Uncertainty about future fertility desires	Irregular cycles that make fertile window prediction unreliable Inability to track consistently Recent childbirth, breastfeeding, or perimenopause (cycles unstable)

Key differences

Female Sterilization duration: Permanent. Fertility Awareness duration: Ongoing daily tracking. Female Sterilization is permanent; Fertility Awareness is reversible. Female Sterilization requires a prescription; Fertility Awareness does not. Female Sterilization: costs $0–$6,000. Fertility Awareness: costs $0–$100 monthly.