Does head impact have a risk of brain hematoma?

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Hello doctor. My husband was bumped into the car door in the head area but did not see any purple color, it hurt to touch. Is there a risk of brain hematoma in the case of head impact? Thanks for the advice doctor.
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Hello. Usually mild head trauma only affects the outer skin and muscles, rarely the inside of the skull. You should watch for the following signs within 24-48 hours: Unusual drowsiness, persistent headache, nausea or vomiting, fatigue, irritability with unconsciousness, slow neurological manifestations such as antsy feeling. Weak limbs and other unusual symptoms.... You should take your husband to the doctor right away.
You can take your husband to a reputable clinic or a hospital of Vinmec Health System to be examined for advice on whether to have a CT Scan or MRI of the brain.
Thank you for trusting and sending the question “Does head impact have a risk of brain hematoma?” to Vinmec. Best regards.
Answered by Doctor of Emergency Department - Vinmec Phu Quoc International General Hospital.