Sacroiliac joint pain often occurs from an imbalance in the muscles and joints of the pelvis; a simple symmetry exercise can help to balance the pelvis and return you to a painfree state. Lie on your back with your knees bent, and your feet flat on the floor. Allow the bottoms of your feet to come together, as you slowly allow your knees to fall out to the side. Start by holding this stretch for 30-60 seconds, but it is important to progressively hold this stretch for upwards of 3-5 minutes. This is similiar to the butterfly pose in Yoga if you are familiar with that. Do this exercise a minimum of 2x/day, or every hour for several minutes, if you are really sore. There are full directions for using this symmetry exercise to balance the pelvis in Cecile Rost’s book, Relieving Pelvic Pain During and After Pregnancy. This symmetry pose should always be followed by contracting your gluteal (buttock) muscles in lying 3-5 times, or by doing the bridge pose in Yoga for 3-5 repetitions.