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 Most Common Rare Diseases. Fragile X affects 1 in 4000 males and 1 in 6000 females of all races and ethnic groups (source CDC). About 1 in 259 women carry fragile X and could pass it to their children. About 1 in 800 men carry Fragile X; their daughters will also be carriers.