When to contact a doctor
A person should seek medical help if they have back pain:

that does not improve with rest
after an injury or fall
with weakness
with tingling or “pins and needles”
with unexplained weight loss
If any of the following occur alongside the pain, seek medical attention immediately:

fever
incontinence
sudden difficulty urinating or having bowel movements
numbness anywhere in the body
a lump or swelling on the back