What are the main signs that a child may be concussed?

The main signs a child may be concussed are lost consciousness, amnesia and confusion; the ears or nose draining blood or watery fluid; inability to speak or see clearly; repeated vomiting; and a seizure or worsening headaches, according to Children's Health Care of Atlanta. These symptoms require immediate medical attention.

Other signs and symptoms of concussion in a child that warrant a doctor's attention are a large scalp bruise or bump, complaints of severe neck pain, difficulty in waking up, drowsiness that progresses, arm or leg weakness, and inability to recognize places or people. A stunned or dazed look, clumsy movement and behavior or personality changes are also notable signs, states Children's Health Care of Atlanta.