Sacroiliitis pain is typically felt in the lower back and buttocks, but it can also extend to the groin, legs, or even the feet. Physical activity may help ease the discomfort. However, certain actions and positions can aggravate the pain, including:

• Sitting or lying down for extended periods

• Standing for a prolonged time

• Uneven weight distribution between the legs

• Climbing stairs

• Running or jogging

• Taking long strides while walking