Egg Freezing With Endometriosis and Adenomyosis: 7 Things to Know Before Stimulation Starts

Starting egg freezing with endometriosis and adenomyosis? Here are 7 things to know before stimulation begins — what to prepare for, what to ask, and what is expected.

She was considering egg freezing before her diagnosis. Now she has both endometriosis and adenomyosis confirmed after five years of misdiagnosis. She starts stimulation next week and is scared of what her conditions will add to an already significant process.

Her fear is valid. And there are specific things she can do to prepare that most clinics do not proactively offer.

Egg freezing with endometriosis and adenomyosis involves specific considerations that change the physical experience, the protocol, and the recovery — knowing them in advance changes how you move through it.

7 Things to Know

1. Pain management during stimulation needs to be specifically planned for endometriosis patients

Standard egg freezing protocols do not automatically include enhanced pain management for women with endometriosis. Stimulation — with its ovarian enlargement, bloating, and pelvic pressure — interacts with existing endo-related inflammation and nerve sensitisation to produce more pain than average. What is manageable discomfort for a woman without endo can be genuine pain for a woman with it.

What to do: Before your first injection, contact your clinic: 'I have endometriosis and I am concerned about pain management during stimulation. What is your protocol for endo patients and what can I take beyond standard paracetamol if needed?'

2. Adenomyosis creates more pronounced bloating and uterine cramping during stimulation

Adenomyosis — where endometrial tissue grows into the uterine muscle wall — causes the uterus to be enlarged and more sensitive to hormonal fluctuations. During stimulation, the combined effect of an enlarged, reactive uterus alongside rapidly enlarging ovaries produces more significant abdominal pressure and cramping than in women without adeno.

What to do: Plan for the second week of stimulation to be harder than average. Loose clothing, small meals, heat therapy on the lower abdomen (safe during stimulation), and pre-arranged rest access are all useful. Prepare for this specifically, not just generically.

3. Your endometriosis medications may need coordination between your fertility clinic and your gynaecologist

If you are on hormonal management for endometriosis — progesterone-only pill, GnRH agonist, or similar — your fertility clinic needs to know, and in most cases will adjust or pause these medications during stimulation. Failure to coordinate creates potential for drug interactions or cycle disruption.

What to do: Make sure both your fertility clinic and gynaecologist know you are starting stimulation next week. Ask each one: 'Is there anything about my current endo treatment that needs to change during the egg freezing cycle?' Get both answers before your first injection.

4. Endometriomas on the ovaries affect accessible follicle count and should have been discussed at baseline

Endometriomas — ovarian cysts formed by endometriosis — can reduce the number of follicles accessible for retrieval and complicate the aspiration process at retrieval. If you have endometriomas, your clinic should have assessed them at your baseline scan and have a specific plan for managing them at retrieval.

What to do: If this has not been discussed, ask before stimulation begins: 'Does my baseline scan show any endometriomas? If so, how does that affect the retrieval process and what is your approach to managing them?'

5. Post-retrieval pain is often more significant with endo and adeno — plan for it specifically

Retrieval involves a needle passing through the vaginal wall into the ovaries. In women with endometriosis, this can temporarily inflame endo tissue in the area. In women with adenomyosis, the post-retrieval uterine cramping can be amplified by the adeno-related uterine reactivity. Both conditions set a higher baseline pain experience after retrieval.

What to do: Ask your clinic about prescription-strength pain management for the retrieval and post-retrieval period before retrieval day. This is a medical procedure with predictable pain — adequate pain management is not optional.

6. The stimulation cycle does not worsen endometriosis permanently — the evidence is clear on this

A common fear among women with endo considering egg freezing is that the high-oestrogen environment of stimulation will cause their endometriosis to progress or worsen permanently. Current evidence does not support this. The stimulation is short-term. Oestrogen returns to baseline after retrieval. No evidence shows that a single egg freezing cycle causes lasting worsening of endometriosis.

What to do: Raise this concern directly with your RE before starting: 'Based on current evidence, will the stimulation cycle affect the progression of my endometriosis?' Getting the answer in the room — from your clinician, for your specific situation — removes the anxiety of guessing.

7. Five years of misdiagnosis is behind her — this cycle is the first decision she is making from the other side of that

She was misdiagnosed for five years. She is now diagnosed with two conditions at once, starting stimulation next week, and carrying the weight of both the conditions and the delayed diagnosis simultaneously. She is also, for the first time, in a position to take action on her own behalf. That shift is significant and worth naming.

What to do: You are not just going through a medical procedure. You are making your first fertility decision with accurate information about your own body. That is different from anything before it.

Egg freezing with endometriosis and adenomyosis is more physically demanding than without them. It is also doable — with specific preparation, specific coordination, and specific expectations.