Brian Hoolahan could do nothing but watch the joy of childbirth turn to horror for hundreds of young women.

During his days as a medical student at the Crown Street Women's Hospital in Sydney, the Nowra obstetrician repeatedly saw babies taken from their unwed teenage mothers moments after birth.

A Senate inquiry into how tens of thousands of young mothers were forced to give up their children for adoption between the 1940s and 1970s will hand down its findings tomorrow Credit:Andrew Quilty

"I remember the girls calling out 'I just want to touch my baby, please let me see my baby' and they were crying and howling and it was the most horrific thing I've ever seen in my life," Dr Hoolahan told the Illawarra Mercury.