Turners Syndrome is a genetic disorder that affects women only where there is only one X chromosome rather than two. What this means is that those affected have one 45 instead of the usual 46 chromosomes and are infertile as the ovaries have never formed. As a result they never have periods (menses, menstruation), breasts don’t develop and neither does the body hair common with the onset of puberty.
There are at least 15 different types of breast cancer that are known, which one is present is dependent on a number of factors including where the cancer is located. All of them have different rates of growth and a variety of tendancies to spread to other areas of the body (metastasize).