American researchers have found preliminary evidence that acupuncture may be able to help relieve non-cyclic breast pain. Thirty-seven women experiencing breast pain received treatment consisting of four acupuncture sessions over two weeks, with three months follow-up. Patients reported that pain (described as throbbing and heavy) decreased significantly after acupuncture. Following treatment, pain scores decreased by an average of 3.5 points (on a 10-point scale) for the worst pain experienced, by 2.7 points for average pain experienced and by 2.3 points for interference from pain. The percentage of patients reporting a clinically meaningful decrease of two points from baseline to the end of treatment was 67% for the worst pain experienced, 65% for average pain experienced, and 56% for pain interference. (Acupuncture for treatment of noncyclic breast pain: a pilot study. Am J Chin Med. 2011;39(6):1117-29).