The sacroiliac joints reside amongst the sacrum (the tailbone phase in the spinal column) and the notable wing-like iliac bones that kind the pelvic girdle. There are 2 SI joints, 1 about the still left and 1 on the proper (highlighted in purple during the image previously mentioned), and combined https://www.theorthopaedicandpainpractice.com/service/hip-groin-pain/