(HealthDay News) -- Any head injury should be taken seriously, but certain warning signs indicate that the injury needs immediate medical attention.

The American Academy of Family Physicians says a doctor's evaluation is required if you notice the following:

• Any symptom that begins to worsen, including sleepiness, nausea or a headache.
• Nausea that doesn't subside.
• Behavioral changes, such as acting confused or irritable.
• Enlarged eye pupils, or pupils that are a different size in each eye.
• Difficulty talking or walking.
• Any bloody or unusual discharge from the nose or ears.
• Seizures or vomiting.
• Weakness or numbness in the legs or arms.