What is the cause of CMTC.

It is thought that CMTC comes about through a fault during cell division in the unborn embryo. Each new life starts as a ball of cells that grows into an embryo. In an embryo, a number of distinct layers can be identified and the cells of each of these layers later develop into the varied multiplicity of organs and tissues from which we exist. When a fault occurs in the layer known as the mesoderm then there is a chance that all tissues and organs that develop from this layer are affected. So aside from the skin, bones and muscles can also display abnormalities. When the genetic fault develops relatively late in pregnancy then only the skin will be affected. The fact that abnormalities frequently only occur on one side of the body supports this theory as to the cause.