“…With regard to acupuncture safety, 24 reviews (48%) reported adverse events in the included RCTs, eleven reviews (22%) did not report information about adverse events [8, 20, 22, 32-34, 37, 41, 42, 48, 50], and 15 reviews (30%) reported no adverse events [7, 9, 11, 17, 18, 21, 26, 28, 29, 38-40, 43, 49, 56]. Regarding the main adverse events, 9 reviews reported unbearable pain or pain caused by anxiety [12,13,15,16,36,47,51,52,54]; 5 reviews reported headache, dizziness or even syncope [14,16,23,35,51]; 2 reviews reported local infection [10,23]; 3 reviews reported local fever or swelling [10,31,47]; 2 reviews reported blood stasis [19,31]; one review reported allergy [30]; and one review reported ear irritation [47].…”