Becker muscular dystrophy, also known as BMD, is an inherited muscle disease. The cause of BMD is when the X chromosome doesn’t make enough levels of the protein dystrophin. Dystrophin is the proteins that help with muscle cells to stay together. Low amount of dystrophin cause the cells to be weak, frail, and easily injure. BMD runs in the family through the mutation in the X chromosome with either one or two parents. BMD could lead to cardiomyopathy and will show no symptom with the carrier, but still can pass on to the offspring. Bone mineral density test is one way to see the amount of calcium and other types of minerals in the
