Symptom Combination

Back Pain and Fever: Causes, Conditions & When to See a Doctor

Back pain with fever is a red flag combination for spinal epidural abscess, discitis/osteomyelitis, pyelonephritis, or aortic graft infection in post-surgical patients. Spinal epidural abscess is rare but can cause permanent paralysis if not decompressed within hours of neurological deterioration.

→ Back Pain Overview → Fever Overview

Possible Causes of Back Pain and Fever

Conditions that commonly cause both symptoms together

1Spinal epidural abscess with progressive neurological deficit
2Vertebral osteomyelitis or discitis (S. aureus most common)
3Pyelonephritis with loin pain and fever
4Retroperitoneal infection or psoas abscess
5Endocarditis with embolic vertebral seeding

Emergency Red Flags

Seek immediate medical attention if you experience any of these

Fever + localized vertebral tenderness + weakness/numbness below lesion

Recent spinal procedure or IV drug use with back pain + fever

Night sweats + weight loss + fever + back pain (TB spondylitis, malignancy)

Bladder or bowel dysfunction with fever and back pain (cauda equina + infection)

Failure of back pain to improve with rest + persistent fever

When to See a Doctor

Schedule a medical consultation if you notice these signs

MRI spine urgently if epidural abscess is suspected

Blood cultures before antibiotics — organism identification is critical

Neurosurgical consultation for decompression if neurological signs present

Prolonged IV antibiotics for confirmed discitis/osteomyelitis (6–12 weeks)

Conditions That Cause Both Back Pain and Fever

6 conditions are associated with this symptom combination

Pancreatitis is inflammation of the pancreas, which can be acute (sudden) or chronic (long-term). Gallstones and heavy alcohol use are the most common causes. It causes severe upper abdominal pain that may radiate to the back, nausea, and vomiting.

Prostatitis is inflammation of the prostate gland, which can be caused by bacterial infection or other factors. It causes pelvic pain, difficult or painful urination, and sometimes fever and chills. Chronic prostatitis is the most common form.

Urinary Tract Infection (UTI)

Urinary tract infections are caused by bacteria entering the urethra and bladder, causing painful urination, urgency, and frequency. Women are significantly more affected; E. coli causes about 80% of cases.

Pleurisy is inflammation of the pleural membranes surrounding the lungs, causing sharp chest pain that worsens when breathing deeply or coughing.

Kidney Infection (Pyelonephritis)

Pyelonephritis is bacterial infection of one or both kidneys, usually ascending from a bladder infection. It requires prompt antibiotics to prevent kidney damage and sepsis.

Pelvic Inflammatory Disease (PID)

PID is an infection of the female reproductive organs, usually caused by sexually transmitted bacteria. Untreated, it can lead to infertility, ectopic pregnancy, and chronic pelvic pain.

Explore Individual Symptoms

In-depth pages for each symptom in this combination

Back Pain — Full Overview Causes Treatment When to See a Doctor Related Questions

Fever — Full Overview Causes Treatment When to See a Doctor Related Questions

Medical Questions About Back Pain and Fever

Evidence-based answers from medical experts

Early Signs of Pancreatitis How to Manage Pancreatitis Early Signs of Prostatitis How to Manage Prostatitis Early Signs of Urinary Tract Infection (UTI)How to Manage Urinary Tract Infection (UTI)Why Does Fever Happen?When Is Fever Dangerous?

Clinical Matches — Authority Pages

Condition-level differential and comparison resources for this combination

Differential analyses:

🔬Pleurisy: differential →🔬Pancreatitis: differential →🔬Pelvic Inflammatory Disease (PID): differential →

Condition comparisons:

⇄Kidney Infection (Pyelonephritis) vs Urinary Tract Infection (UTI) →

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