How can occult spina bifida impact a persons life?

No impact. Spina bifida occulta is manifested by a single defect: failure of the two laminae of a vertebra to achieve bony union with each other. Often times the spinous process is associated with one lamina. Rarely is the spinous process completely absent. The vertebra has normal strength, normal associated joints, ligaments, qnd disks plus no nerve root herniation or compression. Occult = symptom-free.