2. Appendicitis Pain
As if endometriosis wasn’t painful enough—according to researcher published in the National Institutes of Health, endometrial cell growth can also cause the painful inflammation of the appendix and imitate appendicitis symptoms.
Appendicitis typically occurs when bacteria grow in the appendix, the worm-shaped pouch connected to the large intestine. However, if endometriosis is the culprit, catamenial appendicitis will result in the same inflammation of the appendix without the normal fever or increase in white blood cell count. Catamenial appendicitis due to endometriosis also typically coincides with painful menstrual symptoms.