So what is it?
Basically, abdominal separation. During pregnancy your growing uterus can put pressure on your rectus abdominis and cause it to separate. The separation can be so severe that your abs don't go back together after you've given birth. This leaves a gap in the muscle and strains connective tissue. The tissue can become so weak that internal organs can stick out the gap in your muscles, or hernias can develop.
I believe the main problem behind diastasis not getting diagnosed, is because a lot of women don't know about it. And doctors don't often tend to check for it unless they are asked.
So, why am I talking about this?
Because I have it.