When Fertility and Safety Intersect: A Reflection from Clinic
As more and more women present in their 40s trying for their 1st child, uterine pathology is becoming a bigger part of the jigsaw puzzle. This week I diagnosed a sarcoma for the 1st time in my career.
It is not something any fertility specialist expects to say often. In fact, uterine sarcomas are rare. But their rarity is exactly what makes them so challenging - they often sit quietly in the background, looking very similar to common benign conditions such as fibroids or adenomyosis.
Most of the time, when we investigate the uterus in women trying to conceive, we find things that are familiar and manageable. Fibroids, polyps, adenomyosis - these are conditions we deal with every day. They can affect fertility, but they are usually treatable, and we can often work around them.
Occasionally, however, we see something that doesn’t quite fit the usual pattern.
In this case, imaging showed a large mass within the uterus with features that were not typical. It did not mean cancer was definitely present - far from it. In fact, most masses that look unusual on scans still turn out to be benign. But it raised enough concern that I could not confidently reassure my patient without further specialist input.
This is one of the most difficult parts of fertility medicine - balancing hope with honesty.
When someone comes to see you wanting a baby, every decision is framed around that goal. Every investigation, every treatment plan, every conversation is guided by the question: how do we help you get pregnant?
But sometimes, a different question becomes more important: how do we keep you safe?
Uterine sarcomas are rare cancers that arise from the muscle or connective tissue of the uterus. Unlike more common uterine cancers, they are not usually linked to the lining of the uterus and are much harder to diagnose before surgery. Imaging such as MRI can raise suspicion, but it cannot provide certainty.
Because of this uncertainty, the safest approach in cases where sarcoma is a possibility is often surgical. And in many situations, that means removal of the uterus - a hysterectomy.
For a woman who is trying to conceive, this is an incredibly confronting possibility.
In the case I saw this week, there were already several factors making pregnancy more challenging: age, low ovarian reserve, and previous pelvic surgery. These are things we regularly work with in fertility practice. But the presence of a large uterine mass with concerning features changes the conversation entirely.
Suddenly, fertility is no longer the only priority.
One of the most important roles I have as a fertility specialist is knowing when to step back and involve other experts. Gynaecological oncologists are specialists in managing conditions where there may be a risk of cancer. They are best placed to assess these situations and guide decisions about surgery and long-term management.
Referring a patient to oncology is never an easy step. It can feel like a shift away from the original goal of helping someone conceive. But in reality, it is about ensuring that every aspect of a patient’s health is considered - not just fertility.
There is also an important emotional dimension to this.
Many women in their 40s seeking fertility treatment have already been on a long journey. They may have delayed trying for a family for many reasons - career, relationships, life circumstances. When they finally take that step, they are often hopeful, determined, and aware that time is limited.
To then be faced with a situation where pregnancy may not be possible - not because of egg quality or timing, but because of a condition affecting the uterus - can be devastating.
As clinicians, we have to navigate these conversations carefully.
We have to be honest about uncertainty. We have to explain why we are concerned without causing unnecessary alarm. And we have to support patients through decisions that may involve significant loss - including the loss of the possibility of carrying a pregnancy.
At the same time, it is important to remember that these situations are uncommon.
The vast majority of uterine abnormalities seen in fertility practice are benign. Most women with fibroids, adenomyosis, or other structural issues do not have cancer. But this case is a reminder of why careful assessment and appropriate referral are so important.
Medicine often involves working in shades of grey.
We rarely have complete certainty at the point of diagnosis. Instead, we make decisions based on levels of risk, patterns we recognise, and the potential consequences of missing something serious.
In cases where there is even a small possibility of a uterine sarcoma, the consequences of not acting can be significant. That is why guidelines generally recommend surgical management when suspicion is high - not because cancer is confirmed, but because it cannot be safely excluded.
