After a failed IVF cycle: how to read it before you repeat it

The follow-up appointment after an unsuccessful cycle is often short, and it frequently ends with a date for the next one. That is not carelessness — it is what a fifteen-minute slot allows. But a cycle that did not work is a substantial body of data about how your body responded, and it deserves to be read before it is repeated.

Ask for the full cycle record, not the summary

Most women are given an outcome. What you want is the working.

• Protocol and daily dosing — which drugs, what dose, and any adjustments made mid-cycle
• Every monitoring scan — follicle counts and sizes at each visit, and endometrial thickness
• Trigger details — which trigger, at what time, and the follicle sizes at that point
• Retrieval — eggs collected, how many mature
• Fertilisation — how many fertilised normally, IVF or ICSI
• Embryology day by day — cleavage rates, how many reached blastocyst, grading
• Transfer — what was transferred, when, and the endometrial preparation used

You are entitled to all of it.

Where cycles stall, and what each point suggests

Broadly, an unsuccessful cycle stalls at one of four places, and they point in different directions.

Poor ovarian response

Few follicles despite adequate stimulation. The questions worth asking are whether the protocol suited your ovarian reserve markers, whether the starting dose was appropriate, and whether a different protocol type is worth considering. Response is informative in itself: it tells your team something about reserve that no single blood test does.

Good egg numbers, poor fertilisation

This turns attention toward the sperm and the laboratory decision. Was ICSI used, and if not, would it be next time? Has DNA fragmentation ever been assessed? Conventional semen analysis measures count, motility and morphology — it does not measure the integrity of the DNA inside.

Fertilisation fine, embryos arrest

Embryos that fertilise but stop developing before blastocyst raise questions about egg and sperm quality together, and about laboratory conditions. Ask what proportion of cycles at that laboratory reach blastocyst — there are international benchmarks for this, and a centre that tracks its own performance will know its numbers.

Good embryo transferred, no implantation

The hardest one. Attention turns to the uterine environment, the timing of transfer, and whether the embryo was chromosomally normal. This is where investigations are most often sold and least often justified, so it is worth being careful about which are supported by evidence for your situation.

Questions for your follow-up appointment

Write these down and take them in. A short appointment goes further when the questions are already formed.

• At which stage did this cycle stall, and what does that suggest?
• Was the protocol the right one for my markers, and would you change it?
• What proportion of my eggs were mature, and is that expected?
• What were the fertilisation and blastocyst rates, and how do they compare with your laboratory's usual?
• Is there anything about my partner's sperm we have not yet assessed?
• Which additional tests would genuinely change your plan — and which would not?
• If we repeat exactly this cycle, what would you expect to be different?

That last question is the most useful one in the list.

On add-ons

After a failed cycle you will be offered additional tests and treatments. Some are supported by good evidence for specific situations. Many are not, or are supported only for a narrow group that may not include you.

A reasonable filter: ask what the evidence is, which group it applies to, and what would change in your treatment plan depending on the result. If a test would not change anything, its value is questionable regardless of how it is described.