Understanding Pneumonia Causes, Symptoms, Types, and When Surgery is Needed
- Dr. G. Kartheek Krishna

- Nov 12
- 4 min read
Pneumonia affects millions worldwide every year, yet many people do not fully understand what causes it, how to recognize its symptoms, or when it requires more than just medication. This post explores pneumonia in detail, covering its causes, symptoms, and different types. It also explains when surgical intervention becomes necessary and shares real-life patient stories to bring these facts to life. Finally, you will find practical tips for preventing and managing pneumonia effectively.
What Causes Pneumonia?
Pneumonia is an infection that inflames the air sacs in one or both lungs. These air sacs, called alveoli, may fill with fluid or pus, making breathing painful and limiting oxygen intake.
The causes of pneumonia include:
Bacteria: The most common cause, especially Streptococcus pneumoniae. Bacterial pneumonia can develop after a cold or flu.
Viruses: Respiratory viruses like influenza or respiratory syncytial virus (RSV) can cause pneumonia, particularly in children and older adults.
Fungi: Less common, fungal pneumonia can affect people with weakened immune systems or chronic health conditions.
Aspiration: Inhaling food, drink, vomit, or saliva into the lungs can cause pneumonia, especially in people with swallowing difficulties.
Risk factors that increase the chance of developing pneumonia include smoking, chronic illnesses (like diabetes or heart disease), weakened immune systems, and age extremes (young children and elderly).
Recognizing Pneumonia Symptoms
Symptoms of pneumonia can range from mild to severe and often develop quickly. Common signs include:
Cough: Often producing green, yellow, or bloody mucus.
Fever: Sometimes with chills and sweating.
Shortness of breath: Difficulty breathing or rapid breathing.
Chest pain: Sharp or stabbing pain that worsens with deep breaths or coughing.
Fatigue: Feeling unusually tired or weak.
Confusion: Especially in older adults.
Symptoms vary depending on the cause and the person’s overall health. For example, viral pneumonia may start with flu-like symptoms, while bacterial pneumonia often causes a high fever and productive cough.
Types of Pneumonia
Pneumonia is classified based on where and how it was acquired, as well as the causative agent.
Community-Acquired Pneumonia (CAP)
This type occurs outside of hospitals or healthcare settings. It is the most common form and can affect healthy individuals.
Hospital-Acquired Pneumonia (HAP)
Develops during a hospital stay, usually 48 hours or more after admission. It tends to be more serious due to resistant bacteria.
Ventilator-Associated Pneumonia (VAP)
A subtype of HAP, this occurs in people using mechanical ventilation.
Aspiration Pneumonia
Caused by inhaling foreign material into the lungs, often in people with swallowing problems or impaired consciousness.
Atypical Pneumonia
Caused by specific bacteria like Mycoplasma pneumoniae, it often has milder symptoms and affects younger people.
When Is Surgery Needed for Pneumonia?
Most pneumonia cases respond well to antibiotics, antiviral drugs, or antifungals, along with supportive care. Surgery is rarely needed but becomes necessary in certain situations:
Lung Abscess
A pocket of pus forms in the lung tissue due to severe infection. If antibiotics fail to drain the abscess, surgery may be required to remove the infected area.
Empyema
This condition involves pus collecting in the pleural space (the area between the lungs and chest wall). When drainage with a chest tube is insufficient, surgery is needed to remove infected tissue.
Necrotizing Pneumonia
A rare but serious form where lung tissue dies. Surgery may be necessary to remove damaged parts.
Persistent or Recurrent Pneumonia
If pneumonia keeps returning in the same lung area, surgery might be considered to remove the affected lung segment.
Complications from Pneumonia
In some cases, pneumonia leads to complications like bronchopleural fistula or severe bleeding, which may require surgical repair.
Patient Stories Illustrating Surgical Intervention
Case 1: John’s Lung Abscess
John, a 45-year-old man with diabetes, developed a severe bacterial pneumonia that did not improve after two weeks of antibiotics. Imaging revealed a lung abscess. After a failed attempt at drainage, surgeons removed the infected lung segment. John recovered fully after surgery and rehabilitation.
Case 2: Maria’s Empyema
Maria, a 60-year-old woman, was hospitalized with pneumonia complicated by empyema. Initial chest tube drainage helped but did not clear the infection. She underwent surgery to remove the infected pleural tissue. Post-surgery, Maria’s breathing improved, and she returned home within weeks.
These stories highlight how surgery, though uncommon, can be lifesaving when pneumonia complications arise.

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Tips for Preventing Pneumonia
Prevention is key to reducing pneumonia risk. Here are practical steps:
Get vaccinated: Vaccines for pneumococcal bacteria and influenza reduce pneumonia risk.
Practice good hygiene: Wash hands regularly and cover coughs and sneezes.
Avoid smoking: Smoking damages lung defenses and increases infection risk.
Manage chronic conditions: Control diseases like diabetes and asthma.
Maintain a healthy lifestyle: Balanced diet, regular exercise, and adequate sleep support immune health.
Seek prompt medical care: Early treatment of respiratory infections can prevent pneumonia development.
Managing Pneumonia Effectively
If diagnosed with pneumonia, follow these guidelines:
Take all prescribed medications: Complete the full course of antibiotics or antivirals.
Rest and hydrate: Give your body time to heal and stay well-hydrated.
Monitor symptoms: Watch for worsening breathing difficulty, chest pain, or confusion.
Follow up with your doctor: Ensure the infection clears completely.
Final Thoughts
Pneumonia is a serious lung infection with various causes and types. Recognizing symptoms early and understanding when surgery might be necessary can improve outcomes. While most cases respond well to medication, complications like abscesses or empyema require surgical care. Prevention through vaccination and healthy habits remains the best defense.

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