What is sacroilietis?

Q: What is sacroileitis? The spelling might be wrong. Let me try to describe the symptoms: Pain on the left backside. It makes walking difficult.

A:Sacroilietis is the inflammation of the lower part of the spine which causes pain while walking and bending forwards. The cause may be either a small injury or sometimes infection. Pain in the lower back can be caused by many reasons. The confirmation of which can only be made after clinical examination.