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.
By Mayo Clinic Staff. You have a fever when your temperature rises above its normal range. What's normal for you may be a little higher or lower than the average normal temperature of 98.6 F (37 C). Depending on what's causing your fever, additional fever signs and symptoms may include: 1  Sweating. 2  Shivering. 3  Headache. 4  Muscle aches.