Pneumonia

Gambaran umum

Pneumonia is an infection that inflames the tiny air sacs in one or both of your lungs. These air sacs, called alveoli, can fill with fluid or pus, making it harder to breathe and get enough oxygen. It can range from mild — sometimes called 'walking pneumonia' because you can still go about your day — to severe, needing hospital care. Pneumonia can be caused by bacteria, viruses, or fungi.

Pneumonia is one of the most common serious infections worldwide. The World Health Organization (WHO) estimates it affects hundreds of millions of people each year. In the UK, around 220,000 people are admitted to hospital with pneumonia each year, according to NHS data. It is more common in winter months but can occur at any time of year.

Anyone can get pneumonia, but it is most likely to be serious in babies and young children, adults over 65, people with long-term health conditions such as heart or lung disease, and people with weakened immune systems — the body's natural defence against infection. People who smoke are also at higher risk.

Gejala

Gejala umum

• A cough that may produce thick mucus (phlegm), which can be yellow, green, or sometimes blood-tinged
• Fever — feeling hot, shivery, or sweaty
• Shortness of breath, even when resting
• Chest pain that may get worse when you breathe in deeply or cough
• Feeling very tired and generally unwell
• Loss of appetite
• Rapid or shallow breathing
• Headache and muscle aches

Gejala pada anak-anak

• Fast or noisy breathing, or grunting with each breath
• Flared nostrils or the skin pulling in around the neck or ribs when breathing
• Lips or fingernails turning slightly blue or grey — this needs emergency help immediately
• High fever with shivering or sweating
• Refusing to eat or drink
• Being unusually quiet, floppy, or very irritable
• Vomiting or a sore tummy

Gejala pada lansia

• Confusion or sudden changes in mental sharpness — this can sometimes be the first or only obvious sign
• A lower than normal body temperature (hypothermia) rather than a high fever
• Feeling much weaker or more tired than usual
• A worsening of any existing health condition
• Less obvious breathing difficulties — breathlessness may be mistaken for ageing or another condition

Penyebab

Penyebab utama

• Bacteria — the most common cause of pneumonia in adults; bacteria can infect the lungs on their own or after a viral illness
• Viruses — including influenza (flu), respiratory syncytial virus (RSV), and the virus that causes COVID-19; viral pneumonia is more common in children
• Fungi — less common overall, but more likely in people with weakened immune systems or those who have been exposed to certain environments
• Aspiration pneumonia — this happens when food, drink, vomit, or saliva accidentally goes into the lungs instead of the stomach, bringing bacteria with it
• Hospital-acquired pneumonia — a different type of infection picked up during a stay in hospital, often caused by bacteria that are harder to treat

Faktor risiko

• Age — babies under 2 and adults over 65 are at higher risk
• Smoking — damages the lungs' natural ability to fight off infections
• Weakened immune system — from conditions like HIV/AIDS, cancer, or certain medications
• Long-term lung conditions such as asthma or chronic obstructive pulmonary disease (COPD — a condition that causes airways to narrow and breathing to become harder)
• Heart disease, diabetes, or kidney disease
• Difficulty swallowing, which raises the risk of aspiration (food or liquid entering the lungs)
• Being in hospital or a care home, where certain infections circulate more easily
• Heavy alcohol use, which weakens the immune system and the ability to clear the lungs
• Recent viral illness, such as flu, which can make it easier for bacteria to infect the lungs

Kapan harus ke dokter

Segera temui dokter jika:

• You have a persistent cough, fever, and shortness of breath — especially if symptoms are getting worse
• You are in a higher-risk group (over 65, pregnant, have a long-term health condition, or a weakened immune system)
• A child under 5 develops a cough with fever and rapid breathing
• Someone is confused or behaving unusually alongside breathing symptoms
• You have had flu or a respiratory illness and suddenly feel much worse

Buat janji temu rutin jika:

• Your cough has lasted more than three weeks without getting better
• You have had pneumonia before and want to talk about how to reduce your risk in the future
• You want advice about vaccines that could help protect you or a family member
• You feel you have fully recovered but want a follow-up check, especially after a more serious episode

Diagnosis

A doctor will start by asking about your symptoms, how long you have had them, and your general health history. They will then listen to your lungs with a stethoscope to check for abnormal sounds like crackling or reduced breath sounds, which can suggest fluid in the lungs. Based on this, they may order further tests to confirm the diagnosis and find out what is causing the infection.

Tes yang mungkin dilakukan

• Chest X-ray — the most common first test; it shows a picture of your lungs and can reveal areas of infection or fluid
• Blood tests — to check for signs of infection, find out how serious it is, and look for the type of germ causing it
• Sputum (mucus) sample — you may be asked to cough up some mucus so it can be tested in a laboratory to identify the specific germ
• Pulse oximetry — a small device placed on your finger that measures how much oxygen is in your blood; it is painless and takes seconds
• CT scan (a detailed type of X-ray that creates cross-section images) — occasionally used if the diagnosis is unclear or symptoms are unusual
• Blood culture — a blood sample tested to see if bacteria have entered the bloodstream; used in more serious cases
• Urine tests — some types of bacteria that cause pneumonia can be detected in urine

Apa yang diharapkan saat janji temu

Most initial assessments can be done in your GP surgery or an urgent care clinic. If you are very unwell, you may be assessed in hospital. The tests are generally straightforward and not painful. Your healthcare team will use the results to decide the best treatment plan for you. Do not hesitate to ask your doctor to explain any result or next step — it is your right to understand what is happening with your health.

Perawatan

Treatment for pneumonia depends on what is causing it, how severe it is, and your overall health. Mild to moderate pneumonia in otherwise healthy people is usually treated at home. More severe cases, or pneumonia in people at higher risk of complications, may need hospital care. The goal of treatment is to clear the infection, ease symptoms, and prevent complications.

Perawatan mandiri di rumah

• Get plenty of rest — your body needs energy to fight the infection
• Stay well hydrated by drinking plenty of water and clear fluids throughout the day
• Take any medicines prescribed by your doctor exactly as directed and complete the full course even if you start feeling better
• Use over-the-counter pain or fever relief (ask your pharmacist what is suitable for you) to help manage fever, chest discomfort, and aches
• Avoid smoking and stay away from smoky environments, as this makes recovery harder
• Use extra pillows to prop yourself up slightly in bed if this makes breathing more comfortable
• Try gentle, slow breathing exercises if recommended by your healthcare team
• Do not rush back to work or normal activities — most people need several weeks to fully recover

Perawatan medis

If your pneumonia is caused by bacteria, your doctor will prescribe a course of antibiotic medicine — a type of medicine that kills or stops the growth of bacteria. It is very important to take the full course as prescribed, even if you feel better before it is finished, to make sure the infection is fully cleared. Viral pneumonia does not respond to antibiotics; treatment focuses on rest, fluids, and managing symptoms. In some cases, antiviral medicines (medicines that target viruses) may be used. If you need hospital care, you may receive oxygen through a mask or small tubes in your nose to keep your oxygen levels healthy, fluids through a drip in your arm, and medicines given directly into a vein. In the most serious cases, care may be needed in an intensive care unit (ICU), where breathing can be supported with specialist equipment.

Kapan operasi dipertimbangkan?

Surgery is rarely needed for pneumonia. However, if a large collection of fluid or pus forms around the lungs — a complication called an empyema (a pocket of infected fluid between the lung and chest wall) — a doctor may need to drain it using a small tube placed through the chest wall. This is a procedure rather than major surgery, and it is done to help recovery and prevent further complications.

Hidup dengan kondisi ini

Recovery from pneumonia takes time, and it is completely normal to feel tired and under the weather for several weeks — sometimes longer after a more serious episode. Most people gradually improve day by day, but it can feel slow. You may find your energy returns in waves. Listening to your body and not pushing too hard is the kindest thing you can do for yourself during this time.

Tips gaya hidup

• Pace yourself — plan rest periods into your day and do not try to return to full activity too quickly
• Avoid smoking or being around smoke, which slows lung healing and weakens your immune system
• Limit alcohol during recovery, as it can affect your immune system and interact with some medicines
• Keep warm and try to avoid close contact with people who have colds or other infections while your immune system recovers
• Wash your hands regularly to reduce the risk of picking up new infections
• Attend any follow-up appointments your doctor recommends — a repeat chest X-ray may be suggested 6 weeks after treatment to confirm the lungs have fully cleared
• Gradually build up light activity such as short walks as your energy and breathing improve, but stop if you feel breathless or unwell

Diet dan olahraga

Eating well supports recovery. Try to eat regular, balanced meals with plenty of fruits, vegetables, wholegrains, and protein-rich foods like eggs, beans, fish, or meat. Even if your appetite is low, try small, nourishing snacks throughout the day. Staying well hydrated is especially important — water, herbal teas, and clear soups are all helpful. As for exercise, complete rest is important in the early stages. Once you start feeling stronger, short gentle walks are a good starting point. Build up very gradually over weeks — there is no rush. If exercise makes you breathless or your symptoms worsen, rest and speak to your doctor.

Kesehatan mental dan kesejahteraan emosional

It is very common to feel anxious, low, or frustrated when recovering from pneumonia. Being seriously unwell, missing work, or not feeling like yourself for weeks can take a real emotional toll. Some people feel a lingering worry about their breathing or health even after they have physically recovered. These feelings are valid and understandable. If you are feeling persistently sad, anxious, or struggling to cope, please talk to your doctor or a trusted person. You do not have to feel this way alone, and support is available. If you are ever in crisis or having thoughts of harming yourself, please reach out to a crisis support line or your local emergency services immediately.

Pencegahan

While you cannot always prevent pneumonia, there are clear steps you can take to significantly lower your risk. Good hand hygiene — washing your hands regularly with soap and water — reduces the spread of the viruses and bacteria that can lead to pneumonia. Not smoking, or getting help to stop, is one of the most powerful things you can do for your lung health. Managing any long-term health conditions well also helps keep your immune system as strong as possible.

Vaksin

Vaccination is one of the most effective tools we have against certain types of pneumonia. Vaccines are available that protect against some of the most common bacterial and viral causes of pneumonia. These include vaccines against influenza (flu), which can lead to pneumonia, and vaccines specifically targeting certain types of bacteria that are common causes of lung infection. In the UK, the NHS recommends pneumococcal vaccination (protecting against a common type of pneumonia-causing bacteria) for babies, adults over 65, and people with certain health conditions. Flu vaccination is also recommended annually for people at higher risk. Ask your doctor or pharmacist which vaccinations are right for you and your family — they are safe, effective, and free for many people.

Program skrining

There is no routine screening programme for pneumonia. However, if you have a long-term lung condition, your doctor may monitor your lung health regularly with check-ups, breathing tests (called spirometry — a test that measures how well you can breathe in and out), or other assessments. These can help catch problems early and keep your lungs as healthy as possible.

Komplikasi

Jika tidak diobati

• Pleurisy — painful inflammation of the lining around the lungs, which can make breathing very uncomfortable
• Pleural effusion — a build-up of fluid between the lung and the chest wall, which can make breathing harder
• Empyema — a collection of pus around the lungs that may need to be drained
• Lung abscess — a rare pocket of pus that forms inside the lung tissue
• Sepsis — a life-threatening response where the infection spreads into the bloodstream and affects the whole body; this is a medical emergency
• Respiratory failure — where the lungs cannot provide the body with enough oxygen; this requires urgent hospital treatment
• In people with existing heart conditions, pneumonia can sometimes trigger further heart problems

Prospek jangka panjang

The good news is that most people who get pneumonia recover fully, especially with prompt treatment. Many people with mild pneumonia are back on their feet within a few weeks. Even after a more serious episode needing hospital care, the majority of people go on to regain their full health, though it may take a little longer. The outlook is best when treatment starts early, so please do not delay getting checked if you are worried. With the right care, most people get through pneumonia and return to the life they love.

Cari dukungan

Organisasi internasional

• World Health Organization (WHO) — Pneumonia Information ↗
• American Lung Association — Pneumonia ↗
• European Respiratory Society — Patient Information ↗

Organisasi lokal

• NHS — Pneumonia ↗ · United Kingdom
• Asthma + Lung UK — Pneumonia ↗ · United Kingdom
• Lung Foundation Australia — Pneumonia ↗ · Australia
• Canadian Lung Association — Pneumonia ↗ · Canada

Saluran bantuan

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