This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endometriosis & H, Subject name: Gynaecology & Obstetrics
Possible mechanisms causing pain in patients with endometriosis include all except 
Select and explain. 
A. Local peritoneal inflammation, B. Deep infiltration with tissue damage, C. Collection of shed menstrual blood in endometriotic implants, D. Septic seeding of the endometriotic implants
D: Septic seeding of the endometriotic implants
Answer: D: Septic seeding of the endometriotic implants 
Explanation: Possible mechanisms causing pain in patients with endometriosis include:- Local peritoneal inflammation, Deep infiltration with tissue damage, Adhesion formation, Fibrotic thickening, Collection of shed menstrual blood in endometriotic implants, resulting in painful traction with the physiologic movement of tissues.