Why would an athlete be tested for sickle cell trait?
Newborn screening identifies most cases of sickle cell trait and sickle cell anemia. However, this screening was not universally performed in the U.S. until relatively recently. Many adults, and especially athletes born in other countries, may not have been tested to determine their sickle cell status. Since there is some risk of “exertional sickling” during intense training, the National Collegiate Athletic Association (NCAA) advocates testing college athletes who have not documented their sickle cell status.