Final answer:
The hallmark pattern of pain in endometriosis includes dysmenorrhea, dyspareunia, and chronic pelvic pain.
Step-by-step explanation:
Endometriosis is a disease in which endometrial tissue grows outside the uterus. The hallmark pattern of pain in endometriosis includes dysmenorrhea (painful menstruation), dyspareunia (pain during sexual intercourse), and chronic pelvic pain. These symptoms may occur individually or in combination and can range from mild to severe.