Implantation bleeding or implantation spotting is an episode of mild bleeding
during very early pregnancy.
It could be mistaken for menses and could be a subtle very early pregnancy sign if you catch it right!
This is mild uterine bleeding that occurs when the fertilized egg burrows( or implants) into the uterine lining after fertilization. This process creates the slight bleeding that might be observed during implantation.
The spotting from implantation occurs at the end of the implantation process.This
is usually about 10 to 14 days after fertilization(about the time of ovulation), depending on the length of
your cycle. The duration of bleeding is usually about one day.
Many times, women do not know the characteristics of spotting during implantation and therefore end up asking themselves if they are dealing with bleeding from implantation or not. The bleeding is usually mild vaginal bleeding or spotting, which pinkish
or brownish in color. However,bleeding is only one possible symptom of
the process of implantation, besides others like implantation cramps. See more on symptoms of implantation.
Implantation spotting and periods could be confusing because they can occur about the same time. However, both are so different that there need not be any confusion if you know the characteristics of your periods and the bleeding from implantation. They can be easily distinguished by the volume of the bleed, the duration, the timing of occurrence and the color. Read more on "implantation or period bleeding?"
You may also want to review the causes of abnormal uterine bleeding in other not to mislabel one of these as due to implantation.
Implantation spotting is not a disease and is considered a normal or physiologic process. That means it does not affect the pregnancy in any way afterward.
It is important you know that bleeding during implantation should be entertained only after more serious causes have been excluded. Three important very early pregnancy complications you should be aware of are:
If the bleeding you are experiencing is occurring earlier than you expected period, it may be one of these causes of spotting before period.
Bleeding during Implantation is mild bleeding and not heavy. If you have heavy bleeding and thinking it is due to implantation, then that bleeding episode is likely not implantation spotting or bleeding in the first place. See Heavy Implantation spotting or bleeding.
A related question is implantation spotting blood clots, which is also not a feature of normal implantation.
If you suspect you are having implantation spotting, then do the following
Harville EW, Wilcox AJ, Baird DD, Weinberg CR. Vaginal bleeding in very early pregnancy. Hum Reprod 2003; 18:1944.
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