In most cases a weak or receding chin is genetic, so some people are just born with a lack of “projection” in the chin area. Anatomically the shape of the chin is affected not only by the bone structure but by the fatty chin pad at its tip. This means that a receding chin can also develop with age, as a result of the degradation of fat and bone tissue. A weak or receding chin means there is less definition in your jaw line and can make your face look out of proportion. As such, a better-structured chin can make a dramatic difference to the facial profile. Scroll down for answers to all the FAQs about weak chin.