What is the primary symptom of nuchal rigidity?

The primary symptom of nuchal rigidity is a stiff neck, which specifically refers to the inability to flex the neck forward due to increased muscle tone and resistance. This stiffness is often a response to irritation of the meninges, the membranes surrounding the brain and spinal cord, commonly seen in conditions like meningitis. When assessing for nuchal rigidity, healthcare providers typically look for the patient’s resistance and discomfort during attempts to flex the neck, confirming the diagnosis.

While pain in the shoulders, headaches, and decreased range of motion might occur in various neck or spinal conditions, they do not specifically characterize nuchal rigidity as directly as the stiffness and resistance noted during neck movement. Thus, identifying a stiff neck as a symptom is crucial in recognizing and diagnosing underlying conditions associated with nuchal rigidity.