Medical Statistics Thesis

Hello;
I am going to study Medical Statistics for the second year of my part-time MSc.
I need to choose a topic for my thesis and start working on it.
as I don’t know much about Medical Statistics yet, please could you help me to find interesting topics which could potentially be chosen for the thesis?
I would be thankful if you introduce me some ideas that can be considered as a topic for a thesis in Medical Statistics.
Thank you.
Adeleh