You may have been shocked by the look of your belly after the birth of your baby. Beside loose skin, you are also looking at loose abdominal muscles. Your muscles had to stretch and loosen to accommodate your growing baby. Many women experience a separation of the "rectus abdominus" (your six-pack abdominals) called diastastic recti.
What is Diastasis Recti...and do I have it?
Farel Hruska, National Fitness Director