The International Testing Agency (ITA) announced that an out-of-competition sample collected from the 19-year-old shuttler on September 17 returned an adverse analytical finding for furosemide, a prohibited diuretic and masking agent. Ranked 18th in the world, Pitchamon was scheduled to compete in the women's team event against China on Tuesday. Following the immediate suspension under World Anti-Doping Code and Olympic Council of Asia (OCA) rules, she is barred from competing, training, coaching, or participating in any official activities during the Games, though she retains the right to request a B-sample analysis and challenge the ruling before the Court of Arbitration for Sport (CAS).