honestly, so many of them did haha.
the one I can remember immediately is simply because I started a writing prompt on the international day of cancer, so I went looking for movies with that theme. "A walk to remember" is about a young girl in her teens that is battling cancer. The movie is also romantic and it made me cry my eyeballs out haha.
So did 10000 other movies I guess, but it's just the first one that popped up in my mind ..