👉 Sacrocotyloidean is a term used in medicine to describe a condition where there is an imbalance of blood flow to the sacroiliac joints, which are the bones that connect the lower back and the thighs. This can cause pain, stiffness, and difficulty with movement or even limit mobility. In general, sacrocotyloidean occurs when there's too much fluid in the sacroiliac joint, which is where the hip flexors (the muscles that