How can you fix bad posture?

Therapy: Go to a physical therapist to give you exercises to correct posture. Braces and even taping can sometimes be helpful to help re-train the spine.

See below: Work with a physical therapist or a yoga therapist. They can help you learn what good posture looks like and what exercises you need to do to attain a better posture.Once you get the "feel" of good posture, repeated attention to this will change your old patterns over time.

See below: Work with a physical therapist or a yoga therapist. They can help you learn what good posture looks like and what exercises you need to do to attain a better posture.Once you get the "feel" of good posture, repeated attention to this will change your old patterns over time.

Bad habits: Bad posture is simply a bad habit. You need to modify your "behavior" and consciously correct posture. Imagine balancing a book on your head when you walk/sit/stand. This is the best awareness exercise i know. Also, do you really have bad posture? Or is it scheuermann's kyphosis which is a structural deformity of your spine which can be mistaken for posture? Xrays or exam would help to determine.