Itching can be diffuse (generalized all over the body) or localized -- all over or confined to a specific spot -- and there are many causes of diffuse and localized itching. Itching symptoms can be associated with. 1  rash,  dry skin,
How are the Sacrum and Coccyx different from the other vertebrae? The sacrum consists of 5 fused sacral vertebrae and the coccyx consists of 4 fused coccygeal vertebrae. They are different because the are not moveable.
Inferior to the fifth lumbar vertebra (L5) are the sacrum and coccyx bones. The large, triangular-shaped sacrum (os sacrum) is composed of five vertebrae (S1 - S5) that fuse during early adulthood (18 - 30 years). The smaller coccyx (os coccygis) articulates with S5 and is also known as the tailbone. It consists of three to five vertebrae (C1 - C5) that are also usually fused.