It is true. Research in recent years in various countries tells us that, although the endometrioid cell has not yet been recognized as malignant, i.e., a cancer cell, it has been proven to have characteristic of a cancer cell: it opposes a woman's immune cells, does not trigger natural self-destruction mechanisms, can move and spread to various organs with the help of blood vessels. Endometriosis is an increased risk of cancer of the endometrium, ovaries, and mammary gland. Therefore, endometriosis must be treated. For effective immunocorrection in a case of endometriosis, a course of Arecur® suppositories for20 days is required.