Inclusion Criteria:  Women of age 18-45 with signs of endometriosis on ultrasound and/or MRI and/or confirmed by laparoscopy with histology at Akershus University Hospital and Oslo University Hospital. Women may also be recruited through social media but must present with diagnosis of endometriosis. genital-pelvic pain ≥4/10 as measured on a numeric rating scale. able to understand and speak Norwegian language able to meet at Akershus University Hospital for participation in the study giving signed consent to participate.  Exclusion Criteria:  Intra-abdominal or vaginal surgery in the last six months Patients who have received Botox over the past four months Severe pathology (malignancy),cardiovascular conditions and immune system diseases diagnosed by specialist; pregnancy, as well as childbirth the last 12 months and breastfeeding; severe psychiatric disorders that demands or has demanded admission to the hospital; personality disorder diagnosed by specialist and recently started or recently adjusted ongoing hormonal therapy. Participants should not have any disease or injury that could prevent them from participating in the intervention. Participants will be encouraged not to start with any new treatment (non-pharmacological or pharmacological) during the four-month intervention period. Participants who have recently undergone surgery and received Botox injections into the pelvic area can be referred but must wait 4-6 months before being included in the study. Women with planned surgery or Botox in the study period will be excluded. Participants recently started or adjusting ongoing hormonal therapy must wait 3-6 months to be included in the study.