what is lordosis caused by
Causes of Lordosis. There are many medical conditions that cause the spine to curve more than normal. These conditions include 2,3 1  : Achondroplasia-bones do not grow normally, leading to the short stature. 2  Spondylolisthesis-the vertebrae in the lower back slip forward. 3  Osteoporosis-vertebra become fragile and can easily be broken. 4  Obesity-can cause lordosis.