Hi, thanks for the question, I had answered a question for you earlier too, and I am very glad to help you again with your health concerns.
I see that you are concerned about the ovarian cyst whether it could develop in to cancer
Please see that most of the ovarian cysts are benign and they remain benign always
Means they never convert into cancer
I see your dr has mentioned to you the cyst you are having is 100% non cancerous, and if there was any chance of it becoming a cancerous cyst they would have certainly mentioned it to you
Most of the ovarian cysts are benign and the examples include follicular cysts, or corpus luteal cysts, etc and these cysts remain noncancerous always
Since your doctor has not mentioned to you about the risk of cancer in the future so it sounds like the cyst you are having must be a totally benign cyst which will never transform into cancerous one. The description you have provided that it was a simple small fluid filled cyst implies this is a totally benign cyst which will always remain benign in the future too.
Please let me know if you have any further questions, and please click a positive rating (preferably 5 Star/Excellent) to credit for the time & effort put by me in answering your health question, and this is the only way I will be credited for my service to you. If you have follow-up or additional questions you can ask them after the rating too.