What is rectus diastasis?

Rectus diastasis is a term that refers to the stretching and separation of the rectus abdominis muscle at the front of abdomen, otherwise known as the ‘six-pack’ muscle. There is fascia between the two bellies of the rectus abdominis muscle called the linea alba and this is specifically the tissue that is stretched, resulting in the separation of the abdominal muscle. 

This is a normal occurrence for all women in the later stages of pregnancy thought to be due to the growth of the fetus, uterus and other changes that occur to the body.  

What happens if the separation remains?

For a number of women the separation can resolve itself over time however, it is possible for some separation to still be present and the size can vary. This can lead to a change in the visual appearance of the abdominal area and a palpable separation along the line of the belly button can be felt.

What implications does it have?

Rectus diastasis is associated with reduced abdominal muscle function however, this can be improved. While the separation may not completely resolve itself for some women, strength and function can be regained over time with targeted strengthening.

The presence and size of a rectus diastasis is also not associated with an increased likelihood of pelvic floor dysfunction, lower back or pelvic pain. Negative body image and symptoms of depression have been found to be associated with the presence of a rectus diastasis, highlighting the importance of education and intervention in the area.