Common implantation symptoms include cramping and spotting, or very light bleeding, but those same signs can also be indicative of a normal menstrual cycle. So how do you know when your symptoms ...

Human reproduction is an inefficient process, with less than one third of conceptions leading to live births. Failure of the embryo to implant in the uterus is one of the main causes of miscarriage.

Researchers funded by the National Institutes of Health have discovered how an embryo initially attaches to the wall of the uterus—what appears to be one of the earliest steps needed to establish a ...

At first glance, it looks like the start of a human pregnancy: A ball-shaped embryo presses gently into the receptive lining ...

VANDERBILT One of the most vexing causes of infertility is the failure of the embryo to implant in the uterus. It's estimated that roughly three-quarters of all embryos fail to implant properly. And ...

Implantation occurs around 10 days after ovulation, following the release of an egg. Signs of implantation can be very subtle. Some women have very light spotting, known as implantation bleeding, or ...