
Problems with the SI joint may make sitting difficult. Pain in one SI joint may cause a person to sit with that buttock tilted up as it is often uncomfortable to sit flat in a chair. Walking can also be very painful depending on the degree of irritability of the joint and whether or not the joint is considered to have too much movement or is deemed stiff. Increased motion at the joint, such as during pregnancy, can be a particularly debilitating problem which makes activities such as going up or down stairs, standing on one leg, putting on your shoes and socks, or getting in and out of a car difficult. Turning over in bed is also particularly difficult when the SI joint moves more than normal.