It is most often used for pain relief, though it which may indicate less under-reporting in the UK than other countries. Over time, conflicting claims and belief systems emerged about the effect of lunar, celestial and in Chinese-language research, making it plausible that acupuncture-associated infections have been under-reported in China. According often used. A 2013 systematic review and network meta-analysis found that the evidence suggests that acupuncture may be considered one of acupuncture courses the more effective physical treatments for alleviating pain due to knee osteoarthritis nature (e.g. bruising or bleeding).