Sports concussion
Does a normal CT or MRI scan rule out concussion after a head injury?
Doctor’s answer
No. Concussion is diagnosed mainly from the injury history, symptoms, and neurological assessment, and routine CT or MRI scans may be normal. Imaging is primarily used to look for serious structural injuries such as bleeding inside the skull or a fracture.
Author: Dr. Jiwu Chen Medical review: Dr. Jiwu Chen
This content is for education. Diagnosis, treatment, and rehabilitation require an individual assessment by a sports medicine specialist.
Related questions
Can an athlete return to play on the same day after a concussion?
No. Anyone with a suspected concussion should be removed from sport immediately, assessed by a qualified professional, and guided through a staged return to learning, daily activity, and sport. Worsening headache, repeated vomiting, altered consciousness, seizures, or limb weakness requires emergency care.
Can insufficient sleep increase sports injury risk and slow recovery?
Insufficient sleep can reduce reaction speed, attention, and movement control and can interfere with muscle repair, pain regulation, and recovery after training. Athletes should keep a regular schedule and allow enough sleep for their training load. Persistent insomnia, marked daytime sleepiness, or snoring with pauses in breathing warrants assessment.
Should athletes use static stretching or a dynamic warm-up before exercise?
Begin with 5 to 10 minutes of low-intensity activity, followed by a sport-specific dynamic warm-up such as high knees, lunges, leg swings, and progressive accelerations. Longer static stretches are generally better placed after training or in a separate flexibility session.