A mild concussion primarily refers to a patient experiencing a brief loss of consciousness, generally lasting a few seconds to several minutes. Another symptom that can occur is retrograde amnesia, where the patient is unable to recall details of the incident that caused the injury. Some patients may also experience a drop in blood pressure and appear pale. Additionally, patients may suffer from headaches, dizziness, nausea, loss of appetite, insomnia, tinnitus, decreased memory, and lack of concentration, among other clinical manifestations. Mild concussions typically recover after five to seven days of rest, or symptomatic treatment, with most patients regaining their health.