Concrete walls can develop cracks over time due to various factors such as shrinkage, settling of the foundation, temperature changes, or external forces. However, proper design, construction techniques, and regular maintenance can significantly minimize the occurrence of cracks. Reinforcing the concrete with steel reinforcement, using control joints to direct cracking in desired locations, and providing adequate curing are some measures that can help prevent or control cracking in concrete walls. It’s important to address any cracks promptly to prevent further damage and ensure the structural integrity of the walls.