Last Updated：2025/11/30
A rapid and severe brain swelling caused by a second concussion before a first has sufficiently healed, such as may occur after suffering two concussions during the same sports match. It has catastrophic results and may cause death or permanent disability.
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second impact syndrome
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Source Word
second impact syndrome
Noun
uncountable
usually
Japanese Meaning
初回の脳震盪が十分に回復する前に2回目の脳震盪を受け、急激かつ重篤な脳浮腫を引き起こし、死亡や永久的な障害につながる可能性がある状態（第二次衝撃症候群）
（ plural ）
