What are the characteristics of implantation bleeding?

After embryo implantation, you may notice some mild bleeding; on some cases, it is almost imperceptible and on others, it can lead to heavy implantation bleeding. 

Women that have light or irregular periods can mistake the implantation bleeding for menstruation. To differentiate them, it is important to look at the texture. Implantation bleeding is much lighter and does not contain blood clots as with menstruation.