RAS Syndrome is a medical condition that affects children's growth. It stands for "Russell-Silver Syndrome" because it was first described by two doctors called Russell and Silver in the 1950s. The condition causes children to be smaller than average and to have slower growth than other children their age. They also usually have low muscle tone, small heads, differently shaped heads, and small hands and feet. They may also have problems with their digestive system, biology, and hormones. It is important that children with RAS Syndrome get regular medical care so that the doctors can check on their growth and development.