pleurisy with fever

Overview

Pleurisy (also called pleuritis) is inflammation of the pleura, the two thin layers of tissue that line the outside of your lungs and the inside of your chest cavity. When these layers become swollen and rub together, it causes sharp chest pain, especially when you breathe in, cough, or sneeze. Having a fever along with pleurisy often means there is an infection causing the inflammation.

Pleurisy is not extremely common, but it affects about 1 in 1,000 people each year. It can occur at any age.

Anyone can get pleurisy, but it is more common in people with lung infections, autoimmune conditions (like lupus), or after chest injuries.

Symptoms

Common symptoms

• Sharp chest pain that gets worse when you breathe in, cough, or sneeze
• Shortness of breath
• Fever (temperature above 100.4°F or 38°C)
• Cough
• Chills

Symptoms in children

• Same sharp chest pain, may also have irritability, decreased appetite, or grunting when breathing

Symptoms in older adults

• May have less severe pain, confusion, rapid breathing, or only a mild fever

Causes

Main causes

• Viral infections (like the flu or a common cold)
• Bacterial infections (like pneumonia or tuberculosis)
• Autoimmune diseases (like lupus or rheumatoid arthritis)
• Chest injury (like a rib fracture or trauma)
• Blood clot in the lung (pulmonary embolism)

Risk factors

• Recent lung infection
• Smoking
• Weakened immune system (from conditions like HIV or chemotherapy)
• Chronic lung disease (like COPD or cystic fibrosis)
• Autoimmune disease

When to see a doctor

See a doctor urgently if:

• Chest pain with fever that makes it hard to breathe
• Coughing up blood
• Sudden severe chest pain

Book a routine appointment if:

• Mild chest pain with fever that lasts more than 2–3 days
• Ongoing fever without other obvious cause
• Chest pain that makes you worry but is not severe

Diagnosis

Your doctor will ask about your symptoms and listen to your lungs with a stethoscope. They may press on your chest to see how it feels.

Tests that may be done

• Chest X-ray
• Blood tests (to look for signs of infection like elevated white blood cells)
• Sometimes an electrocardiogram (ECG) to rule out heart problems

What to expect at your appointment

You may be asked to lie on your side or breathe deeply while the doctor listens. The tests are quick and painless. Your doctor will explain the results and next steps.

Treatment

Treatment focuses on the underlying cause. If bacteria are causing the infection, antibiotics are used. For viral causes, the infection must run its course, and pain relief is the main treatment.

Self-care at home

• Rest until your fever goes away.
• Drink plenty of fluids to stay hydrated.
• Use a heating pad or warm compress on your chest for pain relief (not if you have active infection with pus).
• Sleep with an extra pillow or in a propped position to ease breathing.

Medical treatments

Your doctor may recommend over-the-counter anti-inflammatory pain relievers (like ibuprofen) to reduce swelling and pain. If these are not enough, they may prescribe a stronger painkiller. If a bacterial infection is found, you will be given antibiotics (taken by mouth or through a vein in hospital). You may also be taught breathing exercises to help expand your lungs.

When is surgery considered?

Surgery is rarely needed. However, if a large amount of fluid builds up around the lung (pleural effusion) and does not clear on its own, a doctor may drain it with a needle or tube. In very rare cases, part of the pleura may need to be removed (pleurectomy).

Living with this condition

Take your medications exactly as directed. Rest until the fever goes away, then gradually return to normal activities. Avoid heavy lifting or intense exercise until the chest pain is gone.

Lifestyle tips

• If you smoke, try to quit — smoking worsens lung inflammation.
• Avoid exposure to air pollution, smoke, or strong fumes.

Diet and exercise

Eat a balanced diet with plenty of fruits, vegetables, and protein to help your immune system. Once the pain eases, gentle walking can help keep your lungs working well. Avoid running or strenuous activity until your doctor says it is safe.

Mental health and emotional wellbeing

Chest pain and breathing difficulty can be scary and cause anxiety. It is normal to feel worried. Talk to your doctor if you feel overwhelmed — they can suggest ways to manage stress, such as relaxation techniques or counselling.

Prevention

You can lower your risk of pleurisy by preventing infections — wash your hands often, avoid close contact with sick people, and stay up to date on recommended vaccines. If you have an autoimmune condition, work with your doctor to keep it under control.

Vaccines

Flu and pneumonia vaccines can help prevent infections that sometimes lead to pleurisy. Talk to your doctor about which vaccines are right for you.

Screening programmes

There is no routine screening test for pleurisy. The best prevention is managing your overall health.

Complications

If left untreated

• Pleural effusion (fluid buildup that can compress the lung)
• Empyema (a collection of pus in the chest cavity, requiring drainage)
• Scarring or thickening of the pleura (which may cause long-term breathing problems)
• Spread of infection to the bloodstream (sepsis) in severe cases

Long-term outlook

Most people with pleurisy recover completely with proper treatment. The outlook depends on the underlying cause — for example, viral pleurisy usually resolves in 1–2 weeks, while bacterial pleurisy may take longer but still has a good outcome with antibiotics. Serious complications are rare when treated promptly. Your doctor will guide you through recovery and follow-up.

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