Inclusion Criteria:

- women undergoing laparoscopic excision of deep endometriosis (stratum 1), excision of
endometrioma's (stratum 2) or excision of uterine myoma's (stratum 3) since this is
severe surgery, associated with severe postoperative adhesions and since for most of
these women fertility is important and hence the second look laparoscopy can be
beneficial.

- Signed informed consent

Exclusion Criteria:

- women with a pre-existing condition increasing the risk of surgery such as clotting
disorders, heart or lung impairment etc.-Any condition that might interfere with
inflammatory parameters such as immunodeficiency, chronic inflammatory disease as
Crohn's disease.

- Pregnancy

- Conditions associated with chronic pain as peripheral neuropathy, pathology of the
vertebral column and osteo-articular disease. Conditions causing acute pain e.g.
abdominal trauma

- a known allergic reaction to Hyalobarrier Gel Endo®

- A bowel lesion requiring a single or double layer suture. (given that for none of the
anti-adhesion barriers safety has been proven following bowel lesions and suture)