Why does implantation bleeding occur?
After being fertilized by a viable sperm, the egg will implant itself in the lining to the uterus, where it will startto grow into a fetus. This lining of the uterus is composed of blood and nutrients, which lining periodically sheds itself as the monthly menstrual bleeding cycle when there is no fertilized egg there to prevent it’s shedding. When the fertilized egg or the blastocyst implants itself into this blood rich endometrial lining of the uterus, there can sometimes be some discharge experienced by women, which is brownish or pinkish in color, which is known as implantation bleeding. This is due to some of the uterine lining getting dislodged by the implantation process. How is implantation bleeding different from menstrual bleeding? Implantation bleeding is a small quantity of discharge and is very different from regular menstrual bleeding. Firstly it is more in the nature of spotting rather than actual bleeding, and secondly the color of the discharge can also be distinguished