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.
Fragile X syndrome is one of the X-linked conditions that can also affect females. Additionally, in other X-linked conditions all males who carry the abnormal form of the gene are affected. In Fragile X syndrome, unaffected males can carry the gene in the premutation form while themselves having no symptoms of the condition.