Baby walking late

Progressive diaphysial dysplasia (PDD) is also known as proliferative periostitis, symmetric sclerosing osteodystrophy, Engelmann disease, or Camurati-Engelmann disease. It can be seen in children of all ages. There was no significant difference in the incidence of men and women, and there were reports of four in three generations in the family. Slow onset and concealment, due to the involvement of long bones in the limbs, so often manifested as limb pain, muscle weakness. Because most of them develop during infancy, they have poor physical development, walking late, and gait instability. Being thin and short, the patient cannot jump or run.