In vitro fertilization (IVF) is a process where sperm and an egg are joined together outside of the body to create an embryo. The embryo can then be inserted into a mother's uterus.
Fallopian Tube, Ovary, and Uterus
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IVF is done to help a woman become pregnant when there is difficulty becoming pregnant naturally.
It is most often done when infertility is due to:
Problems from the procedure are rare, but all procedures have some risk. Your doctor will review potential problems, like:
Factors that may increase the risk of not conceiving and carrying to term include:
Your doctor will likely do the following:
The male, if fertile, refrains from ejaculating for 2-3 days. He then collects semen through masturbation. Penile scar tissue or other conditions may block the natural release of sperm. If this is the case, a sperm aspiration from the testicles may be done. Sometimes, the man's sperm can be frozen ahead of time. If the male partner is unable to produce viable sperm, donor sperm may be used. If male sperm counts are low, the chance of successful fertilization may be improved by directly injecting the sperm into the egg. This is called intracytoplasmic sperm injection (ICSI).
An ultrasound-guided technique is often used to harvest the eggs. The ultrasound probe has a needle attached to the end. The instruments are inserted into the vagina. The ultrasound uses sound waves to view the ovaries and the developed egg follicles in the ovaries. The needle punctures the egg follicles. The fluid and eggs are removed through the needle. The fluid is inspected. It is immediately placed in a clean, nutritive culture material. The fluid will be kept in an incubator.
Between 50,000 and 100,000 of the most mobile, healthy sperm are chosen. They are mixed with the harvested eggs. Sometimes, ICSI may be done. It may help to increase the chances of fertilization. The culture dish is kept at normal body temperature inside an incubator for 2-3 days. During that time, sperm are expected to fertilize 60%-80% of the eggs. Once fertilized, early cell division begins and embryos develop.
A certain number of the embryos (usually 1-5) are placed into the uterus. Fewer embryos decrease the chance of multiples (such as twins, triplets). The other embryos may be frozen. They may be saved for future IVF cycles. You may also choose to donate them to other infertile couples.
A catheter tube is inserted into the vagina. It will be threaded through the cervical canal and into the uterus. The embryos are then passed into the uterus. You may be positioned face down with your knees at your chest. A special table that tilts the uterus downward may also be used. These positions allow gravity to help keep the embryos in the uterus for implantation.
The egg harvesting can be uncomfortable. Anesthesia is given to decrease the discomfort.
Following egg harvesting, expect to rest at the center for a few hours before going home.
You should be able to resume normal activities within a few days. Take any medications as instructed.
Follow-up care may be necessary:
It can be difficult to wait 2 weeks for the results. Even if pregnancy occurs, a miscarriage remains a possibility. If pregnancy did not occur, the next attempt should be at least one month later.
Call your doctor if any of the following occurs:
If you think you have an emergency, call for medical help right away.
American Congress of Obstetricians and Gynecologists
Reproductive Facts—American Society for Reproductive Medicine
The Infertility Awareness Association of Canada
Women's Health Matters
American Society for Reproductive Medicine, Committee Opinion. Fetil Steril. 2008; 90(S3):187.
In vitro fertilization (IVF). American Society for Reproductive Medicine website. Available at: http://www.asrm.org/topics/detail.aspx?id=1278. Accessed May 22, 2013.
International Council on Infertility Information Dissemination website. Available at: http://www.inciid.org/index.php?page=ivf. Accessed May 22, 2013.
What is assisted reproductive technology? The Centers for Disease Control and Prevention website. Available at: http://www.cdc.gov/art/index.htm. Updated April 4, 2013. Accessed May 22, 2013.
What is in vitro fertilization: Why to select it. The National Infertility Association website. Available at: http://www.resolve.org/family-building-options/what-is-in-vitro-fertilization-why-to-select-it.html. Accessed May 22, 2013.
2/4/2011 DynaMed's Systematic Literature Surveillance http://www.ebscohost.com/dynamed: Rossi BV, Berry KF, et al. Effect of alcohol consumption on in vitro fertilization. Obstet Gynecol. 2011;117(1):136-142.
Last reviewed Januar 2015 by Andrea Chisholm, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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