When does implantation bleeding occur?
Implantation bleeding – at what time does it occur? Approximately 5 to 6 days after fertilization of the egg, the embryo implants in the lining of the uterus. At this stage of embryonic development, one speaks of the so-called blastocyst. This blastocyst releases enzymes, also known as proteolytic enzymes. They decompose proteins and thus tissue … When does implantation bleeding occur?