Joint pain can affect one joint or many joints, with stiffness, swelling or reduced movement. Causes range from strain to infection or inflammation, so red, hot, swollen or very painful joints need prompt care.
When to get emergency care
Get emergency help immediately if you have any of these:
A joint that is very painful, red, hot or swollen, especially with fever.
Joint pain after injury with deformity, inability to move, or inability to bear weight.
Joint pain with chest pain, breathlessness, fainting or a widespread rash.
Severe joint pain in a child, older adult or someone with weak immunity.
New joint swelling with unexplained weight loss, night sweats or persistent fever.