Thigh high compression stockings pinch behind the knee whem i bend my knees. how do i stop this? what does it mean? wearing during pregnancy

May not fit right: Thigh high stocking that pinch and gather behind the knee may not be tight enough at the thigh and are falling down. You have several options . Get new stockings that are smaller at the thigh, buy a garter for the stocking, wear pantyhose, you can use an adhesive called it stays. It is fairly common for stocking that are bit loose to do this.