Endometriosis: Diagnosis
The question
To ask the Secretary of State for Health and Social Care, if his Department will publish national data on endometriosis diagnostic waiting times.
Answered by Karin Smyth
The Department does not centrally hold data on the number of women in England and Wales awaiting specialised endometriosis care, or on the waiting times for patients waiting for a diagnosis of endometriosis.
However, in England, the waiting list for gynaecology care, which includes those waiting for endometriosis care, stands at 575,986. This is a reduction of 19,979 since the Government came into office. Consultant-led Referral to Treatment Waiting Times data, which includes the above data, is published monthly at the following link:
https://www.england.nhs.uk/statistics/statistical-work-areas/rtt-waiting-times/rtt-data-2025-26/
Data is currently published on the waiting times for diagnostic tests that are used along an endometriosis pathway, such as magnetic resonance imaging (MRI) and ultrasound, but does not differentiate between the suspected diagnosis. This can be found in the Monthly Diagnostic Waiting Times and Activity dataset, published monthly at the following link:
The following table shows the number of patients waiting for MRI and non-obstetric ultrasound, as of November 2025:
| Total waiting list | Number waiting over six weeks | Percentage waiting over six weeks |
MRI | 362,208 | 67,557 | 18.7% |
Non-obstetric ultrasound | 627,473 | 115,909 | 18.5% |
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