Spina bifida is a birth defect that results from a mistake early in the development of the spinal cord. It causes symptoms like a bulging spinal cord, hydrocephalus, paralysis in the lower back and legs, and bladder and bowel issues. Spina bifida is a chronic condition meaning it cannot be cured, only treated, through surgery, medication, and physiotherapy. Many people with spina bifida will require assistive devices like braces, crutches, or wheelchairs.