14/09/2026
If You’re Having a Chocolate Cyst Removed, Ask How
Two surgeons can take out the same endometrioma — a “chocolate cyst” — and leave you with a meaningfully different ovarian reserve. The question worth asking before you consent is simple: how are you going to do it?
A 2026 network analysis pooled twenty-one randomised trials and just over fifteen hundred women, and compared eight surgical techniques by what happened to AMH three to six months later. Stripping the cyst wall on its own came out worst for that marker. Draining the cyst and sealing it came out best, with roughly seven picomoles per litre more AMH. Stitching the o***y closed after cystectomy came second, at around five.
That is not a reason to demand one method for every cyst. AMH is a reserve marker, not a pregnancy result, and nobody has yet run the trial that compares live births between these techniques. European guidance still favours taking the cyst wall out when the goal is less pain and fewer recurrences — while warning surgeons to spare as much healthy o***y as they can.
But if two approaches look equally reasonable for your cyst, this is a fair thing to raise. Ask the question. A good surgeon will welcome it.
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**SCIENTIFIC REFERENCE**
Nirgianakis K, Kalaitzopoulos DR, Fadinger N, Mueller MD, Gastaldon C. Comparative effect of different surgical treatments for ovarian endometrioma on anti-Müllerian hormone levels: a systematic review and network meta-analysis. Human Reproduction Open. 2026;2026(3):hoag019. doi:10.1093/hropen/hoag019
https://academic.oup.com/hropen/article/2026/3/hoag019/8502575