According to the 1996 Swedish study by Stener-Victorin et al, electro-acupuncture may increase blood flow to the uterus and therefore increase endometrial receptivity in an IVF transfer.
There are several well-studied mechanisms of cupping. Understanding the local and systemic effects may explain why it is used for such a variety of ailments.
Acupuncture creates a mechanical stimulus that may cause long-term changes in the extracellular matrix surrounding the needle.
In 2012, Vicker et al published a meta-analysis in the Archives of Internal Medicine using data from 29 eligible studies (17,922 patients) to see if acupuncture is effective for treating chronic pain and whether it should be recommended.