BSN A stiff neck refers to a tightness or rigidity in the muscles supporting the neck. Nuchal rigidity refers to a stiffness that prevents bending of the neck and limits movement of the neck. Neck stiffness can be simply a mild discomfort and slight problem in moving the neck. Or it can be severe pain and the inability to move or bend the neck at all. The muscles and bones of the neck have to support the weight of the head and every turn the head makes.
Neck stiffness can occur by itself or with neck pain .
Neck pain may come from any structure of the neck. This includes the vertebrae and muscles of the upper back, the blood vessels of the neck, and lymph nodes in the neck. Any type of injury or illness can result in a stiff neck. A person with a stiff neck may move the neck more slowly and carefully. This can lead to painful muscles spasms.