Kyphosis is a condition that is characterized by a rounding or curving of the spine. It can lead to a permanent slouch in a person’s posture. Kyphosis may also be known as a roundback or a hunchback. While everyone has a slight curve in their spine, kyphosis causes the spine to be curved at an angle of fifty degrees or more. This is a significant difference. It is estimated that about four percent to eight percent of people have a type of kyphosis called Scheuermann’s kyphosis. The condition can occur among people of any age and in both men and women. However, older women are the most common group affected by this condition.