Infectious Arthritis Symptoms & Diagnosis

Symptoms

If you experience any of these symptoms do not assume it is because of septic arthritis. These symptoms may be caused by other, less serious health conditions. If you experience any one of them, see the doctor:

Newborn or infants

• Crying when the infected joint is moved, such as during a diaper change
• Immobility of the limb of the infected joint
• Irritability
• Fever
• Persistent crying for any reason

Children and adults

• Intense joint pain
• Joint swelling and redness
• Fever
• Chills
• Immobility of the infected joint or its limb

Diagnosis

Your doctor will ask about your or your child’s symptoms and medical history, and perform a physical exam. Your practitioner may refer you to a rheumatologist or orthopedics specialist. Tests may include the following:

• Withdrawing a sample of synovial fluid (fluid that lubricates the joint) from the affected joint to test it for white blood cells and bacteria
• Performing a culture of blood and urine to rule out other causes (such as gout)
• X-rays to assess joint damage
• Possibly draining fluid from the infected joint; severe cases may require surgery.