When is GnRH analogue therapy recommended for ovarian endometrioma?

An ovarian endometrioma is an endometriosis-related cyst that can contain old blood. A GnRH analogue temporarily reduces the hormonal signals that stimulate ovarian hormone production. This can reduce endometriosis activity and pain, but it does not remove the cyst itself.

A clinician may weigh the cyst’s size and appearance, symptoms, previous treatments, bone health, and whether pregnancy is being planned. These medicines can cause hot flushes, sleep or mood changes, vaginal dryness, and other low-oestrogen effects. The exact medicine and treatment duration depend on your situation.

Arrange a review with a gynaecologist to confirm the diagnosis and discuss the purpose of treatment. Bring details of pain, bleeding, previous medicines, and any plans for pregnancy. Ask whether add-back hormone treatment, monitoring, surgery, or another medical option is more suitable. Do not start, stop, or extend therapy without medical advice.

Seek urgent medical help for sudden severe pelvic pain, fainting, heavy bleeding, fever, repeated vomiting, or a swollen and tender abdomen. These symptoms can signal a complication that needs prompt assessment, regardless of whether you are using GnRH analogue therapy.

Ask: What is the aim of this medicine for me? How will we monitor symptoms and the endometrioma? Which side effects should I report? Could treatment affect my fertility plans or bone health? What alternatives are available if it is not suitable?