“…Ascitic fluid associated with endometriosis is of an exudative nature (19,21,33) and may originate as a result of peritoneal irritation caused by the presence of blood in the cavity due to the rupture of endometrial cysts. The rapid production of fluid by inflamed tissue and the obstruction of subdiaphragmatic lymph vessels, which impair its reabsorption, may be responsible for the large volumes detected (5,9,19,24,28,29).…”