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.
The vertebrae are roughened up so that the body responds by producing new bone. The new bone eventually bridges the gaps between the vertebrae and makes them fuse together. Metal implants -- rods, screws, hooks or wires -- are put in to hold the spine still while the vertebrae fuse.