Over my years of private practice I have treated countless women who experience low back pain. Their pain has all been similar by a description of pain in the buttocks, sacrum and along the crest of the hips in the back. A good portion of these women have had children delivered via cesarean (c-section), with resulting prominent scar tissue just above the pubic bone. Through palpation I have found their lower abdominal region armoured, with very little fascial and tissue glide.
Through further assessment I found that by stretching or pulling the scar tissue it will typically refer pain into either one or both hip flexors. The hip flexors or psoas musscles originate at the lumbar vertabrae T12-L5 (your lower back). The insertion point (or other end) of this muscle is at the lessor trochanter of the femur or in your groin. When one hip flexor is hypertonic it will typically cause the lower lumbar spine to laterally flex. As a result pain is manifested, typically either sciatic pain or lower back pain.
Another symptom I have seen with these clients who have had c-sections is that they may have issues with lower digestion such as irritable bowel syndrome or elimination difficulties. Again, the tightening created by the scar tissue pulls within the abdominal cavity and thus affects the organs.
Bottom line, typically the scar tissue that formed after the c-section has tightened and pulled their bodies our of balance and the symptoms of pain in the back really originates in the abdomen. Fortunately there is a solution that works for most women. Myofascial and craniosacral help unwind or release the pulling from the scar tissue in the pelvic floor. The hip flexor(s) can then return to balance or homeostasis. This relaxation of the tight lower abdominal tissue relieves pressure off of the low back, increases leg movement, and typically relieves pain.
— Michael