Here is an extract below from an article I read in the Times last year, about a little known condition called Ashermanns Syndrome

THE HIDDEN THREAT TO FERTILITY
A rarely diagnosed condition called Asherman’s causes miscarriage and can prevent pregnancy, yet it’s cheap to test for and can be treated
Catherine Bruton The Times Dec 10th 2007

Sarah Raynes had no trouble conceiving the first time around. But when, a year after her son was born, she wanted to try for her second child, her menstrual cycle hadn’t resumed – despite confirmation from a home ovulation kit that she was ovulating regularly. At her GP’s advice, she gave up breast-feeding, but several months later there was still no sign of her periods returning, and Sarah started to get concerned.

She turned to the internet for advice: “I typed ‘ovulation without bleeding’ into a search engine and came across a condition called Asherman’s Syndrome.”

Also known as scarring of the uterus, this syndrome can result in permanent infertility and recurrent miscarriage. It is usually caused by a D&C (a dilation and curettage) procedure, performed to clear the uterus after a miscarriage, to remove a retained placenta after the birth of a child or, in a minority of cases, to abort a pregnancy.

Here is the link to read the full story