• The person is unconscious for more than a few seconds.
• Severe bleeding does not stop or slow down after applying direct pressure, or blood quickly soaks through several bandages.
• The person has a seizure.
• The person feels weak or numb on one side of the body.
• Double vision or trouble speaking lasts more than a minute or two.
• The person seems confused, does not remember being hurt, or keeps asking the same questions.
• You have trouble waking the person anytime in the next 24 hours.

• The person fainted for a second or two and is now awake.
• Vomiting occurs more than once after the injury.
• The person has a severe headache.
• Blood or clear fluid drains from the ears or nose.
• There is bruising around both eyes or behind one ear.
• There is a new "dent" or deformity in the skull.
• The wound needs stitches.

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