Black spot on screen?

Guys I got this black thing on my laptop screen but transfers other parts after like 4 months

What could be the problem?
NB: I have never dropped it IMG_20200726_143735.jpg


Village Elder
Ok. The screen could be faulty from factory. I once had a samsung laptop, started with a small black spot and it spread across the screen. Had to replace the screen at a cost of about 9 k, in 2009