Your head is very susceptible to injury whether it be minor or major, that is because while it surrounded by the skull, majority of the blood vessels in your body are located within the brain, any injury can cause bleeding on or within the brain, which should be attended to by a medical professional for a correct diagnosis.
Symptoms can vary depending on the severity of the injury, they can either be noticeable right after a traumatic event, while others can take days or even weeks to appear. Common symptoms of a head injury are: