u/Extension-Example-44

Hi, this is my son. He's 8 years old.

He hit his head in school last year in the playground, not sure if it was into the school wall or the pole by the playground.

Ever since he got this mark that came in his forehead (please see photos). Unfortunately I was only able to add on photo to this.

Some days this mark is darker, and some days it's lighter, but the mark looks like it's getting longer and darker. I told him to his doctor, his doctor said it's discoloration,.we took him to a neurologist he said everything seems normal. His forhead has no noticeable bump or anything. I'm here looking for some advice please.