Welcome Tammy @tamcbart. Making treatment decisions are so hard! Fellow ovarian cancer thrivers @starko @susu2 @odette may be able to share their experiences.

In addition to lower the risk of recurrence, there are other criteria to consider about whether to have chemo or not with stage 1 ovarian cancer. Your oncologist can speak to both the population statistics and to your individual factors, including your age, health status, other medical conditions, and your personal goals and preferences.

You ask a good question about how long it takes for tumor markers to decrease after surgery. I'm not sure if the indicators change immediately or not. That's a good question for your team too. I'd love to hear the answer.