Concussion diagnosis usually includes, first, a history of head trauma; second, after a head CT scan, no significant substantive changes are observed, but the patient has experienced a transient loss of consciousness, typically not exceeding half an hour. Third, there is approximated amnesia where the patient cannot recall the incident. Some may show symptoms such as decreased blood pressure and pale complexion, while others can experience dizziness, headache, nausea, loss of appetite, insomnia, memory deterioration, and lack of concentration among a series of clinical presentations. Diagnosis of concussion can be confirmed through medical history, supplementary examinations, and clinical symptoms.