What does USP stand for? What does USP mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: USP.
Anytime a person with lower back pain and fever complains of a stiff neck, meningitis must be considered, especially in children. Meningitis is an infection of the tissue that covers the brain and spinal cord. It may cause upper back pain, stiff neck, swollen lymph nodes, and fever.
The joints in a person's body may experience stiffness from an injury or a strain. Stiffness in the joints can also begin as a person ages. Tendinitis, muscle spasms and arthritis cause pain and stiffness in the joints as well.