SI Joint Pain, or Sacroiliac Joint Pain, refers to discomfort, soreness, or aching originating from the sacroiliac joints, which connect the spine to the pelvis. These joints are critical in transferring the weight of the upper body to the lower extremities and providing stability for the pelvis. SI Joint Pain can manifest as lower back, hip, groin, or buttock pain and may also radiate down the legs. It often results from a range of causes such as degenerative arthritis, traumatic injury, pregnancy-related changes, or inflammatory joint disease. Diagnosis typically involves a physical examination, medical history, and sometimes imaging tests. Treatment may include physical therapy, pain medication, joint injections, or, in more severe cases, surgery. Pain management strategies aim to reduce inflammation, restore joint function, and alleviate discomfort.