One of my favorite people just had a baby and she was telling me about some back pain that she had when she was pregnant, and continues to have. Let me tell you a little bit about the anatomy of the spine. The spine is curvy. That curve that goes in a little bit at your low back, that’s called lordosis. Move up the spine to the upper back, that curve is the opposite. This curve, the one that curves out a little bit, is called kyphosis.
Then at your neck the spine curves in a little bit again and you have some more lordosis. When all is said and done(I guess that saying doesn’t really apply here but whatever) the spine when looked at from the side should look like a backwards ‘S.’ The main thing you want to do when trying to have super duper good posture is maintain these curves.
Pregnancy causes one to have a rather large belly. When looking at a pregnant woman from the side, it appears that she has increased lordosis in her lumbar spine(increased inward curvature of the low back). However, this is an optical illusion and is not the case. Actually, in most cases pregnancy will cause the lumbar spine to be kyphotic(increased outward curvature) because the fetus is actually pushing out on the lumbar spine so instead of creating more lordosis(inward curve), kyphosis(outward curve) is created despite looking very much like the low back is much more lordotic. For each condition, increased kyphosis or increased lordosis, there are certain things that you can do to help the back pain but the first step is figuring out why you are having pain and what your spine is doing which you cannot do by just looking at the spine or saying “well you’re pregnant, this is why you have pain…”
Does that make sense? Most PTs and doctors would not say this to you. That pregnancy causes your spine to do this but I’m very much used to saying things that people disagree with so believe what you will.