Acupuncture may help reduce the severity of hot flashes - a typical symptom of menopause - in nearly 50 percent of women.
Acupuncture is a system of alternative medicine in which fine needles are inserted in the skin at specific points along what are considered to be lines of energy (meridians), used in the treatment of various physical and mental conditions.
"Women bothered by hot flashes and night sweats may want to give acupuncture a try as a relatively low-cost, low-risk treatment," said lead author Nancy Avis, Professor at Wake Forest Baptist Medical Center in North Carolina, US.
For the study, the team included 209 perimenopausal and postmenopausal women aged between 45 to 60 who had on average at least four hot flashes or night sweats per day.
These women were further randomized to receive up to 20 acupuncture treatments within six months or to a control group.
"Women who had a reduction in their hot flashes saw a benefit beginning after about three to four weeks of weekly treatments," Avis added.
Of the 170 women who received acupuncture, a small group of women (11.9 percent) had an 85 percent reduction in hot flashes by the eighth week of the study, Avis said.
Forty-seven percent of the study group reported a 47 percent reduction over this same time frame.
However, 37 percent showed only a minimal reduction of 9.6 percent in frequency of hot flashes, while 4 percent reported a 100 percent increase in hot flashes, the researchers concluded in the paper published in the journal Menopause.
(With agency inputs)