Spina bifida is a complex birth defect of the spinal cord, or “neural tube defect”. Although I know more than I ever wanted to know about this condition, I’m going to provide links that will explain SB better than I can.
About 96% of people born with SB also have a condition known as Chiari II Malformation. Lilly does have this condition, but I haven’t observed any symptoms at all.
Almost all people born with SB have a neurogenic bladder and neurogenic bowel. We manage Lilly’s bladder with medication (oxybutynin), and catheterize her every three hours or so. The bowel concerns are tougher to manage, and takes a lot of work, a lot of trial and error. We’re using a combination of laxatives and bowel training. Some kids (usually those in wheelchairs) need to have surgery for one or both conditions.