Does paid medical debt fall off? If so, how?

I have two collections, both 800. Both 1-2 years old. I am thinking of getting personal loan to pay them off so I can have my credit in check by the time I graduate college and don’t have to worry about approvals I’ll need. Now I have 3 questions regarding this, so please answer if you can so I understand properly

1. I read that paid medial debt shouldn’t be reported or won’t be (I’m not sure which, so please correct me so I can have the correct info).

2. So after I pay them does the creditor stop reporting it and removes it or do I have to dispute to get it removed? Or does the bureau do it automatically?

3. And by paid… does that mean settled (400 instead of 800?) or paid in full?