What causes soft spots in adult skulls?

Soft spots in adult skulls, known as skull deformities or fontanelle persistence, can be caused by various factors, including congenital conditions, trauma, or diseases affecting bone growth. In some cases, conditions like osteogenesis imperfecta or craniOSynostosis can lead to incomplete closure of the sutures. Nutritional deficiencies, particularly in calcium or vitamin D, may also contribute to weakened bone structure. These soft spots can pose risks, as they may lead to increased vulnerability to injury or deformities.