A slight collision may also lead to serious fracture or bleeding. Rare hereditary diseases such as brittle bone disease, porcelain doll and hemophilia are all called "glass man".
Glass man introduction:
Osteogenesis imperfecta (OI) is also called fragile bone. Also known as hereditary brittle bone triad, because of its fragile bones, it is easy to lead to multiple fractures, bone bending deformity, blue sclera and deafness.
The disease is a hereditary connective tissue disease, which is familial, but there are also some cases. It is mainly caused by mesenchymal dysplasia and collagen formation disorder, and because of the lack of osteoblasts, periosteum and intraosseous osteogenesis are obstacles, leading to osteoporosis and brittleness increase, and fractures often occur due to minor trauma in clinic. Such children are also commonly known as "glass dolls".
Hemophilia patients are also called glass men. Hemophilia is a coagulation disorder linked to X chromosome. Normal people rely on blood vessels, platelets and coagulation factors to stop bleeding after traumatic bleeding.
There are more than ten kinds of coagulation factors in human body, and the lack of one or more coagulation factors may lead to coagulation dysfunction, which is manifested by the inability to stop bleeding normally after bleeding. Hemophilia is a hemorrhagic disease caused by partial or total deficiency of some coagulation factors in the body.