Ovarian endometriosis

Endometrioma (chocolate cyst): treatment and fertility impact

An endometrioma is not just a cyst — the surgical technique used matters enormously for future fertility.

Op. Dr. Berra Önsoy — Consultant Obstetrician & Gynaecologist
Medically written & reviewed by
Op. Dr. Berra Önsoy · Consultant Obstetrician & Gynaecologist
Istanbul, Turkey · 29 years of clinical practice · 7 min read · Consults in English & Turkish

Istanbul University Cerrahpaşa (English) MD, 1997. Ob-Gyn residency at Taksim Training & Research Hospital (2001). Private practice in Istanbul focused on endometriosis, myoma surgery, high-risk pregnancy and aesthetic gynaecology.

Clinical focus
  • Endometriosis surgery
  • Myoma (fibroid) surgery
  • High-risk pregnancy
  • Aesthetic gynaecology
  • HPV & colposcopy
Last medically reviewed: 15 January 2026View full clinical credentials·Verify on:drberraonsoy.cominstagram.com
Key takeaways
  • Not every endometrioma needs surgery.
  • Technique choice affects ovarian reserve.
  • IVF vs surgery order is individualised.

When to operate

Cysts under 4 cm without pain or fertility concern can often be monitored. Cysts over 4 cm, painful cysts, or cysts in a woman planning IVF frequently need surgical treatment first.

Cystectomy vs ablation

Laparoscopic cystectomy (removing the cyst wall) has lower recurrence than ablation but reduces ovarian reserve slightly. In women with low AMH or bilateral endometriomas, ablation with plasma energy is a fertility-preserving alternative.

Frequently asked questions

Does surgery affect AMH?

Yes, moderately. This is why technique choice matters.

Can endometriomas recur?

Yes — recurrence is around 20% at 5 years without hormonal suppression.

Should I do IVF or surgery first?

It depends on cyst size, symptoms and AMH. This decision needs a consultant conversation.

Could a doctor-led plan help you?

A 30-minute video consultation with Dr Berra Önsoy — reviewing your symptoms and imaging and giving you a clear personalised plan for endometriosis surgery.

Request a video consultation

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