Endometriosis can be present in multiple locations within the body and as such can cause pain in various areas including the upper abdomen. Despite the fact that the worst pain associated with the endometriosis is usually felt during the menstruation, the symptoms of pain in the different locations can unfortunately also be felt at any time during the monthly cycle. Regarding the different treatment options, Laparoscopic surgery and hormonal therapy are common treatment options for endometriosis. Surgery can potentially remove lesions to provide pain relief, while hormones can decrease symptoms and suppress endometrial growth. The best approach depends on your specific case – so we would advise you to discuss the pros and cons of each type of treatment with your gynecologist to determine the right plan.