This blog has reported on a wide range of medical studies that have pointed to various general health and infertility-related problems caused by exposure to bisphenol-A (BPA). Now, a new study led by the University of California, San Francisco (UCSF), suggests that this harmful chemical may damage a woman's ova before a baby can even be conceived, much less born. The UCSF researchers studied a small subgroup of 26 women undergoing in vitro fertilization (IVF) — looking specifically at the impact BPA had on the success of the procedure.