Background:The perception high school athletes have regarding concussions may influence their injury-reporting behavior, and if their perceptions are based on incorrect or incomplete information, they may be at risk for subsequent head injuries.Purpose:To determine whether the recent influx of concussion information has had a positive impact on high school athletes’ knowledge of concussions, to determine their perceptions regarding the severity of a concussion injury, and to determine whether receiving correct information will potentially alter their future reporting behavior.Study Design:Cross-sectional study; Level of evidence, 4.Methods:A total of 454 high school athletes (212 females, 242 males; mean age, 15.7 ± 1.15 years) from 6 different schools participated in an anonymous survey. The researchers met with teams individually at their high schools to collect data and provide an educational intervention regarding sports-related concussions. The survey questions assessed the athletes’ personal injury histories and perceptions and knowledge of the severity of concussion injuries.Results:There was a difference in the number of athletes who reported having their “bell rung” (n = 297) versus the number of athletes reporting at least 1 concussion (n = 172) (t (453) = −11.60, P = .000, d = −0.54). There was also a difference in the number of athletes who reported a history of at least 1 concussion at the beginning of the study session (n = 172) versus the number of athletes who reported at least 1 concussion at the end of the session (n = 292) (t (453) = −12.018, P = .000, d = 0.732). Fifty percent of athletes also stated that the importance of a game/event should dictate when they return to play.Conclusion:High school athletes continue to fail to realize when they have sustained a concussion. Additionally, athletes lack understanding regarding the severity and seriousness of a concussion. A better effort at formalized education must be made if the culture of sports is to change.Clinical Relevance:Allied health care professionals need to continue to put forth a great effort in educating all student athletes on what a concussion is and the dangers of a concussion injury. Preseason meetings should be used as an opportunity to provide formalized education to all student athletes.