A blow to the head may result in scalp damage, skull or even brain damage, as does a blow to the side of the brain, but the exact severity is related to the force and location of the blow.
Fist blows to the head may cause subcutaneous hematomas, subcapsular tendon hematomas, and subperiosteal hematomas. The scalp is rich in blood, and it is very easy to lose blood after the injury, which can lead to hemorrhagic shock, and once infected, it is more likely to spread to the deeper parts, causing intracranial infection.
If the blow is too strong may also lead to skull fracture, skull fracture is easy to complicate the dura mater, brain tissue, intracranial blood vessels and nerve damage. Skull base fractures are more likely to be associated with ear and nose bleeding or cerebrospinal fluid leakage.
The most likely of the brain injuries caused by fist blows is a concussion, which is characterized by impaired consciousness and amnesia of recent events immediately after the injury, and may be accompanied by dizziness and headache. Generally not more than half an hour, the injury at the time and pre-injury can not remember the recent situation, usually after timely treatment, the prognosis is good.
If you are hit by a fist on the head, you should seek timely medical treatment and active treatment. To avoid delays.