MBD is an abbreviation commonly used in the medical and science fields to refer to metabolic bone disease, which is characterized by a range of conditions that affect the bone health of an individual. Some synonyms for MBD include osteoporosis, rickets, osteomalacia, Paget's disease, and renal osteodystrophy. These conditions cause bones to become more brittle, weaker, and more prone to fractures. While the cause of each condition may differ, the visible symptoms are usually similar. It is essential to seek medical advice and diagnosis if experiencing any of the associated symptoms, such as recurrent fractures, chronic pain, or unexplained bone deformities, for early intervention and treatment to prevent the worsening of the condition.