I dropped my MacBook Pro and there were a few display issues at first, but now seems fine. Should I be worried?

I dropped my Macbook pro from a 2 cm fall on the desk while I was putting it on my bag. I worked on in later on and everything was fine. 4-5 hours later it shuts down. After turning on the apple symbol appears and everything is fine, it said the Mac crashed to click on any key. After that, on the step you log in, 2/3 of my screen was black with colourful straps. After logging in everything was fine once again. I repeated the process again. Only when it asked the password to log in, did the screen shoed up like that. I didn't tried anymore. Should I be concerned? The Mac is working fine, everything saved and the screen is fine.

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