Hello. My 6 years old cousin jumped and hit his head in a small wooden door frame. It made a big noise. I am worried about a concussion. He said he felt dizzy for short seconds following the hit. Than, he had a mild headache that lasted for 10 minutes. After that, he seemed normal, with just a sore bruise in his head. He didn’t have nausea, blurry vision or confusion. Do you think he had a concussion/minor traumatic brain damage? Can this kind of impact be enough to cause concussion? Thanks for reading!