Step 4: Read and complete the decision guide to learn more about your symptoms.
For people under the age 40 with neck pain less than two weeks that worsens with the application of pressure, the most common causes are
muscle spasm or strain
osteoarthritis (often with muscle spasm).
Neck arthritis as a cause of neck pain is relatively uncommon in persons under the age of 40, however.
There is usually a good response to treatment in these conditions--that is, the prognosis is generally good.