Research has confirmed that acupuncture can improve the blood flow to the pelvic artery (measured in PI values). [Improving ovarian function and the hormones oestrogen and progesterone as well as improving the menstrual cycle will lead to better blood flow to the uterine lining thus improving the nourishment and thickness of the lining.]

Steiner Victorin et al (1996) ‘Reduction of blood flow impedance in the uterine arteries of infertile women with electro-acupuncture’, Human Reproduction; 11 (6);1314-7.