Common areas that may refer pain to the pelvic region include: the abdomen, lower back, hips, pubic symphysis (the firm, fixed joint between the two pubic bones) and sacro - iliac joint (the joint formed by the sacrum and
ilium where they meet on either side of the lower back).
Obviously, the other muscles here are your abdominals, your rectus abdominis and your obliques, and sometimes you'll have trigger points or sore spots on the side here, right
where they start to attach on the top of your
ilium.