Refer to a specialist endometriosis service (endometriosis centre) if the woman has suspected or confirmed: endometrioma, deep endometriosis involving the bowel, bladder, or ureter, or endometriosis outside the pelvic cavity NICE CKS.
Refer young women (aged 17 years or younger) with suspected or confirmed endometriosis to a paediatric and adolescent gynaecology service, gynaecology service, or specialist endometriosis service (endometriosis centre), depending on local service provision NICE CKS.
Refer women or people with symptoms of, or confirmed, endometriosis to a gynaecology service if: initial treatment is not effective, is not tolerated or is contraindicated, or they have symptoms of endometriosis which have a detrimental impact on activities of daily living, or they have persistent or recurrent symptoms of endometriosis, or they have pelvic signs of endometriosis, but deep endometriosis is not suspected NICE NG73.
Refer women or people to a specialist endometriosis service if they have suspected or confirmed: endometrioma, deep endometriosis, including that involving the bowel, bladder or ureter, or endometriosis outside the pelvic cavity NICE CKS.