This can also be called small-for gestational age (SGA) or fetal growth restriction. There are basically two different types of IUGR: Symmetric or primary IUGR is characterized by all internal organs being reduced in size. Symmetric IUGR accounts for 20% to 25% of all cases of IUGR.
Fragile X syndrome (FXS), also known as MartinâBell syndrome, or Escalante's syndrome (more commonly used in South American countries), is a genetic syndrome.
People with Fragile X syndrome also share certain medical problems as well as many common physical characteristics,2 such as large ears and a long face. In addition, having Fragile X is often associated with problems with sensation, emotion, and behavior.