Mayo Clinic Health Manager
Get free personalized health guidance for you and your family.
Get StartedRisk factors
By Mayo Clinic staffThe cause of most scoliosis is unknown (idiopathic). Scoliosis is often first noticed around the time of adolescence, during a growth spurt. Growth is often the cause for worsening of an existing curve.
Other than growth, risk factors that make it more likely that a scoliosis curve will get worse include:
- Sex. Curves in girls are more likely to worsen than are curves in boys.
- Age. The younger the child when scoliosis appears, the greater the chance the curve will worsen.
- Size of the curve. The greater the curve size, the higher the likelihood that it will worsen.
- Location. Curves in the middle to lower spine are less likely to progress than are those in the upper spine.
- Spinal problems at birth. Children who are born with scoliosis (congenital scoliosis) have a greater risk of worsening of the curve. Congenital scoliosis is thought of as a birth defect affecting the size and shape of the bones of the spine.