A mental status examination is kind of like when a doctor checks your temperature, looks in your ears, and listens to your heartbeat. But instead of checking your physical health, they're checking your brain and how it's working.
It's kind of like a test where the doctor will ask you questions and give you tasks to do to see how well you can think, remember things, and communicate. They might ask you questions about your feelings and how you've been sleeping or eating.
The doctor is trying to figure out if you have any problems with your mental health, like depression, anxiety, or problems with memory. It's important for the doctor to do this so they can figure out how to help you feel better and get better.