Bronchitis in adults

Overview

Bronchitis is the swelling and redness (inflammation) of the tubes that carry air to and from your lungs (the bronchial tubes). This irritation makes those tubes produce extra mucus, causing you to cough and feel chest discomfort. There are two main types: acute bronchitis (short-term, often from a cold or flu virus) and chronic bronchitis (long-term, usually caused by smoking or breathing in lung irritants).

Yes, bronchitis is very common. Almost everyone will have acute bronchitis at some point, especially during cold and flu season. Chronic bronchitis mainly affects people who smoke or have long-term exposure to lung irritants.

Acute bronchitis can affect adults of any age, but it is most common in winter. People with weakened immune systems, smokers, and those with other lung diseases (like asthma or COPD) are at higher risk. Chronic bronchitis is most common in adults over 40 who smoke or have smoked.

Symptoms

Common symptoms

• Cough that brings up clear, yellow, or green mucus (phlegm)
• Shortness of breath or wheezing
• Chest tightness or discomfort
• Fatigue (feeling very tired)
• Low fever (under 38.5°C / 101.3°F) and chills
• Sore throat, stuffy nose

Symptoms in children

• Coughing that may be forceful enough to cause vomiting
• Trouble breathing or fast breathing
• Irritability or fussiness
• Not feeding well or drinking enough fluids

Symptoms in older adults

• Confusion or drowsiness
• Rapid breathing or feeling out of breath even at rest
• Very little fever or no fever at all
• Cough that lasts several weeks without improvement

Causes

Main causes

• Viruses – the same viruses that cause colds and the flu are the most common cause of acute bronchitis
• Bacteria – less often, bacteria like Bordetella pertussis (whooping cough) can cause bronchitis
• Irritants – smoke, dust, fumes, or strong chemical smells can trigger chronic bronchitis

Risk factors

• Smoking cigarettes, cigars, or pipes – this is the biggest risk factor for both acute and chronic bronchitis
• Being around secondhand smoke, air pollution, or workplace dust and fumes
• Having a weakened immune system (from illness, poor nutrition, or some medications)
• Living in crowded or poorly ventilated spaces
• Having other lung diseases such as asthma, COPD, or cystic fibrosis

When to see a doctor

See a doctor urgently if:

• You have trouble breathing or chest pain
• You cough up blood
• Your fever is very high (above 39°C/102°F) and doesn't come down
• Your cough lasts longer than 3 weeks or gets worse

Book a routine appointment if:

• Your cough is mild and you have no other concerning symptoms – you can often manage at home
• You have a chronic condition like asthma or heart disease and you develop a cough
• You are unsure whether your symptoms are from bronchitis or something else

Diagnosis

Your doctor will ask about your symptoms, listen to your lungs with a stethoscope, and check your temperature and oxygen levels. The diagnosis is usually made from your history and physical exam alone.

Tests that may be done

• Chest X-ray – to rule out pneumonia or other lung problems
• Sputum culture (testing your mucus) – if a bacterial infection is suspected
• Blood tests – to check for infection or inflammation
• Pulse oximetry – a small clip on your finger to measure oxygen in your blood

What to expect at your appointment

Your doctor will ask when your cough started, what it sounds like, and whether you have other symptoms like fever or shortness of breath. They will press on your chest and back and listen to your breathing. The exam is painless and takes about 10 minutes. Most people leave with a treatment plan for home care.

Treatment

For acute bronchitis, treatment focuses on relieving your symptoms while your body fights the infection. Antibiotics are not usually needed because the cause is viral. For chronic bronchitis, treatment aims to control symptoms and prevent flare-ups. Your doctor will create a plan tailored to your situation.

Self-care at home

• Get plenty of rest to help your body heal
• Drink lots of fluids (water, warm tea, soup) to thin the mucus
• Use a cool-mist humidifier or take a steamy shower to ease coughing
• Avoid smoke and other lung irritants
• Honey (if you are over 1 year old) can soothe a cough – try a teaspoon in warm water
• Prop your head up with pillows at night to help you breathe more easily

Medical treatments

If your cough is very severe or you have wheezing, your doctor may prescribe an inhaler to open your airways. Over-the-counter pain relievers (like paracetamol or ibuprofen) can help with fever and aches – always follow the package directions. Cough suppressants are generally not recommended because coughing helps clear mucus. If a bacterial infection is confirmed, your doctor will prescribe an antibiotic – but this is rare for acute bronchitis. For chronic bronchitis, treatments may include inhalers, pulmonary rehabilitation (exercise and breathing training), and in some cases oxygen therapy.

When is surgery considered?

Surgery is not a treatment for bronchitis. Chronic bronchitis is managed with medications, lifestyle changes, and sometimes oxygen. In very severe cases of lung damage, a lung transplant may be considered, but this is extremely rare.

Living with this condition

During an acute bronchitis episode, rest is key. Stay home from work or school until your fever is gone and you feel better. When you have chronic bronchitis, you will need to pace yourself – plan your day so you can rest when needed and avoid overexertion.

Lifestyle tips

• If you smoke, seek help from your healthcare provider to quit – this is the most important thing you can do
• Avoid exposure to secondhand smoke, dust, and chemical fumes
• Wash your hands often to reduce your risk of respiratory infections
• Get a flu shot every year and ask your doctor about a pneumococcal (pneumonia) vaccine
• Use a humidifier in dry environments to keep airways moist

Diet and exercise

There is no special diet that cures bronchitis, but eating a balanced diet with plenty of fruits and vegetables supports your immune system. Drink enough fluids to keep mucus thin. Light exercise like walking can help if you feel up to it – but stop if you become short of breath or feel worse. For chronic bronchitis, a structured pulmonary rehabilitation program can help you build stamina safely.

Mental health and emotional wellbeing

Coping with a lingering cough or a chronic condition can be frustrating and tiring. You may feel anxious about your breathing or depressed about your limitations. It is normal to have these feelings. Talk to your doctor or a mental health professional if you notice changes in your mood. For chronic bronchitis, joining a support group can help you connect with others who understand.

Prevention

You cannot always prevent acute bronchitis, but you can lower your risk. The most important steps are to avoid smoking, wash your hands regularly, and stay away from people who are sick. For chronic bronchitis, quitting smoking is the most effective prevention.

Vaccines

Getting a flu vaccine every year can reduce your risk of getting a virus that often leads to bronchitis. Ask your doctor about the pneumococcal vaccine, which protects against some types of bacterial pneumonia – this is especially important for adults over 65 or those with chronic health conditions.

Screening programmes

There is no routine screening test for bronchitis. If you have a chronic cough or risk factors (like smoking), your doctor may recommend a lung function test (spirometry) to check for underlying lung problems.

Complications

If left untreated

• Pneumonia – an infection that inflames air sacs in the lungs
• Respiratory failure (in severe cases) – when your lungs cannot get enough oxygen into your blood
• Worsening of other lung conditions like asthma or COPD
• Cracked ribs (rare) from intense coughing

Long-term outlook

For acute bronchitis, most people get better within 2 to 3 weeks without any long-term problems. With rest and self-care, symptoms usually improve day by day. Chronic bronchitis is a long-term condition, but with proper treatment – including quitting smoking, using medications, and staying active – many people manage their symptoms well and enjoy a good quality of life. Your healthcare team will work with you to help you breathe easier.

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