In this thread, we use the gender-neutral term "people" because it's precise. Trans men and nonbinary people with uteruses are affected by endometriosis, and there's a multiple case studies of cisgender men who have it! (it's very rare in cis men though).
We're going to unpick this a bit more because it surprises a lot of people (including doctors!) that endometriosis can occur in people who don't have periods, and even occurs in people who don't have uteruses.
https://masto.ai/@vagina_museum/109947725538720022