Endometriosis can be minimal or mild, but it can also become more severe and progress to level III or IV.
In the case of moderate endometriosis (grade III), endometrial nodules begin to appear and may invade other structures. In addition, it is possible to observe slight pelvic adhesions.
On the other hand, women diagnosed with severe or grade IV endometriosis have several deep, invasive endometrial nodules and even chocolate cysts in the ovaries. In this case, the woman's reproductive capacity is severely limited.