Depending on the size they are usually benign and usually surgically removed as endometrial cysts (aka endometriomas) don't go away on their own and are indicative of endometriosis.
I had a 7cm one that was removed laparoscopically 2yrs ago.
Have you been diagnosed w/ endometriosis in the past?
This has nothing to do w/ endometrial cancer/uterine cancer.
If you have sx's of uterine ca (ie/ midcycle bleeding) then tell your provider and ask them to do a uterine biopsy.
The cyst issue, again, however is something different altogether.
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