This is an interesting overview of acupunture from Webmd

http://www.webmd.com/pain-management/ss/slideshow-acupuncture-overview

I've suffered from vertigo attacks, linked with chronic neck and shoulder pain for years (that land me in the hospital for days). Started acupuncture twice a week in November, and don't have the issue anymore. I use a Chinese doctor who used to work for NIH's Center for Complimentary and Alternative Medicine. It works for me. Thought I'd be paying out of pocket, but have BCBS Federal and my copay is less than usual $9 a visit! Why not try it, regardless of what others might way. If it works for you, then that's all that matters right?

In a study by Stener-Victorin et al from the Departments of Obstetrics and Gynecology Fertility Centre, Scandinavia and University of Gothenburg, women are encouraged to receive acupuncture treatments pre and post embryo transfer. Clinical observations from the Berkley Center for Reproductive Wellness suggest that the most effective fertility treatments involve a combination of acupuncture, herbal medicine, and traditional medicine. However, conception occasionally occurs when acupuncture and herbal medicines are used without traditional medical interventions.

I'm in the "it's worked for thousands of years and that's enough evidence for me" camp.

I myself have had good success with alleviating very bad hormonal headaches via acupuncture.

I also was lucky to have an acupuncturist who was open to the fact that it might not work. When I initially saw her, I was a mess of constipation, allergies, built up stress, headaches, etc. She tried a few treatments and said "your body is blocking this." She sent me for lymph drainage therapy, which was brutal, but it worked to clear out my system. After that, I was able to go get acupunture for my headaches and it worked really, really well.

I had horrible carpal tunnel and my right wrist only bent about half as far as my left. One accupuncture session and they were the same. No stretching, nothing but needles, compared the flexibility when I walked in the building and when I walked out. Crazy sh*t. The only time I've used it, but I'd say that's evidence.