Slicing is the opposite to hooking and a result of hitting the ball clockwise rather than a counterclockwise spin. This forces the ball to move both in the air and the ground from left to right.

Surveys have shown that approx. 80% of all golfers slice the ball. It is interesting to note also from a doctor of chiropractic's point of view that 8 out of 10 people have one leg slightly shorter than the other. So one of the major factors causing slicing is a biomechanical fault that causes a rotation in your pelvis effecting your posture, your spine angle, and thus your swing plane.

If you are a right handed golfer and you have an apparent left leg shortening due to a lateral rotation of the pelvis, this can be the result of a flexion / extension of the pelvis at the s-i joint. We can determine this with an examination.

With your poor biomechanics the club is being forced into an out-to-in swing so you will hit the ball with a clockwise spine. Correcting your hip and spine angle will square the club face at impact so you can hit the ball with an anti-clockwise spin. The hips and shoulders must return to a square position this will not only cure your slice but you allow distance from more power being generated from the correct body turn and the square club face. If your hips are rotated you will not be able to align your feet, hips and shoulders square to the target. If your posture is corrected your muscles will groove your new swing so you will naturally return to a stance with a square club face. Also if your hips are rotated your centre of gravity will not be right this will force your shoulders to turn too quickly with an open stance due to a poor hip rotation the body will be in front of the ball. If your spine angle is wrong you will not setup with your head behind the ball you will begin your downswing before you have complete your back swing with your arms.