👉 Exstrophy is a medical condition that refers to the abnormal development of a bone or cartilage in the spine. The exact cause of exstrophy varies, but it can be caused by several factors such as trauma, infection, or genetic abnormalities. Exstrophy can lead to pain, stiffness, and difficulty walking, especially if not treated promptly. Treatment for exstrophy may include physical therapy, surgery, or medication.