I have no idea what they are or how I end up causing them to appear on the mesh. I just want to get rid of them. Please help.
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I have no idea what they are or how I end up causing them to appear on the mesh. I just want to get rid of them. Please help.

Looks like creasing. Go to “Tool > Geometry > Crease” and click “UnCreaseAll” button.
THANK YOU THANK YOU, you are my hero. Have a nice day. : )