Rare bone diseases such as Osteogenesis Imperfecta and Fibrous Dysplasia are conditions affecting bone development and structure. Osteogenesis Imperfecta, also known as brittle bone disease, results in fragile bones prone to fractures. Fibrous Dysplasia causes abnormal growths in bones, weakening them and potentially causing deformities. These conditions require specialized medical care and management to address symptoms and improve quality of life.