Dysfunction of natural koller cells (NK cells) is an important factor in the development of endometriosis. NK cell therapy was applied to treat severe endometriosis, which is an exploration of the pathogenesis of this refractory disease.

Endometriosis (EMs) is one of the common and frequently occurring diseases in women of childbearing age, which seriously affects the health and quality of life of the vast majority of women. The pathogenesis of endometriosis is unknown until now, and the recurrence rate of existing treatment methods is high. It is more and more necessary to introduce new therapeutic methods and strategies in view of the mechanism associated with the reduction of natural killer cell (NK) cytotoxicity. In this study, routine therapy combined with NK cell therapy was used in the treatment of severe endometriosis. The clinical data were collected to confirm the efficacy and safety of NK cell therapy. It is expected to provide a new way of thinking and method for the clinical treatment of EMs.

Inclusion Criteria:

1. Diagonsed as endometriosis stage III~IV
2. Age ≥18 years ≤ 45 years at the time of informed consent
3. With indications for conservative endometriosis surgery
4. With complete clinical data

Exclusion Criteria:

1. Severe allergy to drugs
2. Patients with abnormal immune status (Autoimmune disease or long-term use of immunosuppressive agents)
3. With serious cardiac, cerebrovascular diseases and liver, kidney disorders
4. With a history of severe mental illness