Recurrent Implantation Failure: What Your Doctor Checks Next
Few things in IVF are as heartbreaking as transferring a good-quality embryo, waiting, and getting another negative result. When it happens more than once, you may start wondering whether something specific is going wrong. Recurrent implantation failure, often shortened to RIF, is the term doctors use when embryos repeatedly fail to implant. It’s an area with a lot of research, a lot of debate, and no one-size-fits-all answer. This guide explains how RIF is defined, what your doctor may check next, and how to have a productive conversation about your options.
This article is for education and support only and is not medical advice. Testing and treatment for implantation failure should be tailored to you by your doctor or reproductive endocrinologist. As an Amazon Associate, Fertility Mommies earns from qualifying purchases, at no extra cost to you.
What is recurrent implantation failure?
There isn’t a single universal definition. In general, RIF describes a situation where several transfers of good-quality embryos haven’t resulted in a pregnancy. Different clinics and professional societies use different thresholds, taking into account things like your age, how many embryos were transferred, and whether embryos were genetically tested.
Part of the challenge is that even a healthy, chromosomally normal embryo doesn’t implant every time. Sometimes repeated failure is due to chance. Other times, there’s an identifiable reason that can be addressed. The goal of an evaluation is to look for factors that can be found and treated without adding unnecessary tests.
To understand the basics, read the science of embryo implantation.
Embryo factors your doctor may consider
Chromosomal abnormalities
The most common reason embryos don’t implant is believed to be chromosomal abnormalities, which become more frequent as egg age increases. Your doctor may discuss preimplantation genetic testing for aneuploidy (PGT-A). PGT-A has benefits and limitations, and experts don’t agree on who benefits most. Learn more in what is PGT-A.
Egg and sperm factors
Your doctor may review your stimulation response, fertilization rates, and embryo development. A semen analysis or additional sperm testing may be considered in some cases.
Uterine factors your doctor may check
Structural problems
Polyps, fibroids that affect the uterine cavity, scar tissue, or a uterine septum can interfere with implantation. These are often evaluated with a hysteroscopy or saline sonogram and can sometimes be corrected with a procedure.
Hydrosalpinx
A fluid-filled, blocked fallopian tube may lower IVF success. If one is found, your doctor may recommend treating it before another transfer.
Chronic endometritis
This is a low-grade inflammation of the uterine lining that may not cause symptoms. Some doctors test for it with a biopsy and treat it with antibiotics, though research on its role in RIF is still evolving.
Thin lining
If your lining doesn’t thicken well, your doctor may adjust your protocol. Medications or timing changes may be options.
Other tests that may be considered
Depending on your history, your doctor might check:
- Thyroid function, since thyroid problems can affect fertility and pregnancy
- Blood sugar and other metabolic markers
- Karyotype testing of both partners, to look for balanced chromosomal rearrangements
- Antiphospholipid antibodies, especially if you’ve also had pregnancy loss
- Vitamin D or other levels, depending on your doctor’s approach
Tests and treatments that are debated
Some tests and add-ons are widely offered but have limited or conflicting evidence. These include:
- Endometrial receptivity testing, which aims to personalize transfer timing. Studies have had mixed results. Read what is an ERA test.
- Immune testing and treatments, such as tests for natural killer cells and therapies like intralipids or steroids
- Inherited thrombophilia testing and blood thinners, when there’s no personal history of clotting
- Endometrial scratching, embryo glue, and assisted hatching
That doesn’t mean these are never appropriate. It means it’s worth asking your doctor what the evidence shows, what the costs and risks are, and why they recommend it for you.
Questions to ask your RE
Bringing questions to your follow-up appointment can help you feel more in control. Consider asking:
- Based on my history, do you think chance or a specific factor is more likely?
- What tests do you recommend, and what would each result change?
- Would PGT-A or a change in my stimulation protocol make sense?
- Is there anything about my uterus or lining we haven’t checked?
- Which add-ons do you offer, and what’s the evidence behind them?
- What are my options if the next transfer doesn’t work?
A fertility treatment binder can help you keep records from every cycle in one place, which is especially helpful if you seek a second opinion.
Caring for yourself after repeated failures
Repeated failed transfers can bring grief, anger, and exhaustion. It’s okay to take a break between cycles. Our post on rebuilding hope after a failed cycle may help. Some people also find comfort in a book about coping with infertility.
Frequently asked questions
Is recurrent implantation failure the same as recurrent pregnancy loss?
No. RIF refers to embryos that don’t implant. Recurrent pregnancy loss refers to pregnancies that begin and then end in miscarriage. Testing overlaps in some areas but differs in others.
Should I switch clinics after repeated failures?
A second opinion can be valuable, especially if your questions aren’t being answered. It doesn’t always mean you need to switch.
Can lifestyle changes fix implantation failure?
Healthy habits support your overall health, but RIF usually needs a medical evaluation. Talk with your doctor before trying supplements or add-ons.
The bottom line
Recurrent implantation failure is painful, and it’s also complicated. A thoughtful evaluation focuses on the most likely causes and avoids unproven extras. Ask questions, keep good records, and take breaks when you need them. Share this with someone who’s facing the next step after another negative.