FemBloc Hero Image

Non-Surgical
Permanent Birth Control

FemBloc, the only choice.

Non-Surgical
Permanent Birth Control

FemBloc, the only choice.

Why block the fallopian tubes with your own tissue?

By delivering our specially designed blended polymer to your fallopian tubes, it causes a natural healing response and formation of your own tissue to block the fallopian tubes.

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    SAFETY: Through five years, there were no reported serious safety events. The most common non-serious safety events were spotting/bleeding and/or pelvic pain/cramps that usually resolved shortly after the procedure.1

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    EFFECTIVE: Although no contraceptive method is 100% effective, FemBloc demonstrated a 0% pregnancy rate in a subset of women who participated.1

FemBloc Brochure

1Liu, J. H., Blumenthal, P. D., Castano, P. M., Chudnoff, S. C., Gawron, L. M., Johnstone, E. B., Lee-Sepsick, K. (2025). FemBloc Non-Surgical Permanent Contraception for Occlusion of the Fallopian Tubes. J Gynecol Reprod Med, 9(1), 01-12. doi: 10.33140/ JGRM.09.01.05.

Did you know?

Millions of women struggle with contraceptive methods particularly when they are done having children.2,3

2Daniels et. al, Current contraceptive status among women aged 15-49: United States, 2017-2019. NCHS Data Brief, no 388. Hyattsville, MD: National Center for Health Statistics. 2020.

3National health statistics reports; no 60. Hyattsville, MD: National Center for Health Statistics. 2012.

How does FemBloc differ from surgical sterilization or tubal ligation surgery?

Surgical sterilization or tubal ligation surgery, also known as having your tubes tied, is a form of permanent birth control. During the surgery, your fallopian tubes are cut, burned, and then tied or blocked using a clamp, clip, or band to prevent pregnancy by blocking sperm from connecting with your egg.

Risks of tubal ligation surgery include:

  • Adverse reaction to anesthesia
  • Pain at the incision site and abdomen
  • Infection
  • Bleeding from incision site or inside abdomen
  • Damage to bowel, bladder or major blood vessels

Real-world effectiveness of surgical (laparaoscopic) sterilization was evaluated in a large study (N=23,965) and concluded:

  • "women considering surgical sterilization should be informed that after the procedure, women typically face at least a 6% chance of pregnancy in the next 5 years." 4

4 Gariepy et al. Comparative Effectiveness of Hysteroscopic and Laparoscopic Sterilization for Women: A Retrospective Cohort Study. Fertility and Sterility, 2022, 0015-0282. doi: 10.1016/j.fertnstert.2022.03.001.

Surgery photo

Surgical sterilization is usually performed laparoscopically as shown

FemBloc is a simple procedure without surgery or permanent implants.