Quoting Rebecca Lynn kinq:" Theres also several articles saying castor oil has absolutely no connection to the cervix it just goes ... [snip!] ... Not against castor oil especially because its your body and ur baby just thought I would let u know what I've read about it.."
No, it causes you to go to the bathroom & causes everything to simulate. It does work, you don't drink the whole bottle. You take a small shot of it, and it doesn't cause the baby to use to bathroom in the womb. If it didn't work, then why would it be on a bunch of baby sites. Yes, you are supposed to tell your doctor but you can do it.