Medically reviewed by Amy Kwan, PT Lower right back pain can come from issues with muscles, discs, joints, or internal organs ...

Back spasms are involuntary muscle contractions. They can happen because of muscle weakness, overuse, or injury. Muscle strains can cause sudden pain and spasms, often occurring in the lower back from ...

Lower spine pain can develop due to sprains and strains of muscles or changes to the discs in the lower back. Conditions that affect the facet joints of the vertebrae may also cause lower spine pain.