Lung Infection - Types, Causes, Symptoms & Treatments

Lung Infection - Types, Causes, Symptoms & Treatments

  Category: Lungs Diseases-Pulmonology      Date: 03-08-2023  

A lung infection, also known as a respiratory infection, is an infection that affects the respiratory system, particularly the lungs. It can be caused by various microorganisms, including bacteria, viruses, fungi, and in some cases, parasites. Lung infections can range from mild to severe and may affect different parts of the respiratory system, such as the bronchi, bronchioles, alveoli, and lung tissues. Get acquainted with types, causes, and symptoms of lung infection, and avail the appropriate treatment from the top pulmonologist doctors at best hospital in Patna at BASH

Lung infection can happen to individuals irrespective of their ages. A pulmonologist may perform several tests to determine the exact cause of your lung infection. Typically, they can take a sample of the thing you cough up or a blood sample. They can usually use these fluids to determine the cause of the infection –for example, viruses or bacteria.  The best pulmonologist near me will thoroughly inspect your infection’s cause, symptoms, and whether you face any health concerns or conditions. Subsequently, they may perform tests to check how effectively your lungs hold up the air. They may capture medical images of your chest via CT scan or X-ray, or ask you to breathe into a spirometry.

Let’s go through the details of various types of lung infections.


Some common types of lung infections include:

  1. Pneumonia: Pneumonia is a common lung infection characterized by inflammation of the air sacs in one or both lungs. It can be caused by bacteria, viruses, or fungi and leads to symptoms such as cough, fever, difficulty breathing, and chest pain.
  2. Bronchitis: Bronchitis is an inflammation of the bronchial tubes that carry air to and from the lungs. It can be acute (short-term) or chronic (long-term) and is often caused by viruses or bacteria. Symptoms include coughing, phlegm production, and chest discomfort. If you are facing any of these symptoms, make sure to see a pulmonologist doctor near me.
  3. Tuberculosis (TB): TB is a bacterial infection caused by Mycobacterium tuberculosis. It primarily affects the lungs but can also affect other organs. Symptoms of TB include chronic cough, chest pain, weight loss, and fatigue.
  4. Influenza (Flu): Influenza is a viral infection that can affect the upper respiratory system, including the lungs. It causes symptoms such as fever, chills, body aches, cough, and fatigue.
  5. Fungal Lung Infections: Fungal lung infections can occur in individuals with weakened immune systems or certain underlying conditions. Examples include aspergillosis and histoplasmosis.


Now let’s understand various causes leading to lung infections :

Lung infections are typically caused by the inhalation or transmission of infectious agents. The most common causes are:

  • Viral Infections: Many respiratory infections, such as the flu and common cold, are caused by viruses.
  • Bacterial Infections: Bacterial pneumonia is a common lung infection caused by bacteria such as Streptococcus pneumoniae. Although it may seem insignificant, make sure not to neglect this cause and visit a super speciality hospital in Patna for accurate diagnosis.
  • Fungal Infections: Fungi in the environment can cause lung infections, especially in people with weakened immune systems.
  • Aspiration: Inhaling food, liquids, or stomach contents into the lungs can lead to lung infections.
  • Tuberculosis (TB): TB is caused by Mycobacterium tuberculosis and is transmitted through the air when an infected person coughs or sneezes.


The understanding of symptoms as described below will help you accurately diagnose your lung infection. Symptoms of lung infections can vary depending on the type and severity of the infection, but common symptoms include:

  • Coughing (with or without phlegm production)
  • Shortness of breath
  • Chest pain or discomfort
  • Fever and chills
  • Fatigue and weakness
  • Wheezing or difficulty breathing
  • Sore throat or nasal congestion (in upper respiratory infections)

If you suspect you have a lung infection or are experiencing severe respiratory symptoms, it's essential to seek medical attention promptly. Early diagnosis and appropriate treatment from Patna best hospital are crucial to managing lung infections effectively and preventing potential complications.

The treatment of a lung infection depends on the type and severity of the infection, as well as the causative agent. In many cases, lung infections can be managed with appropriate medical care, rest, and self-care measures.

Here are the common treatment approaches for different types of lung infections:

1. Viral Respiratory Infections:

  • Most viral respiratory infections, such as the common cold and flu, are self-limiting and do not require specific medical treatment.
  • Rest, staying hydrated, and over-the-counter medications (e.g., acetaminophen, ibuprofen) can help relieve symptoms such as fever, cough, and body aches.
  • In severe cases, antiviral medications may be prescribed for certain viral infections like influenza.

2. Bacterial Lung Infections:

  • Bacterial lung infections, such as bacterial pneumonia, are typically treated with antibiotics.
  • The choice of antibiotic depends on the suspected or identified bacteria and its sensitivity to specific drugs. Availing treatment from Apollo hospital in Patna can help you alleviate bacterial lung infections. 
  • It is essential to complete the full course of antibiotics as prescribed by the pulmonologist to ensure effective treatment and prevent antibiotic resistance.

3. Tuberculosis (TB):

  • TB requires a more extended treatment regimen that usually involves a combination of several antibiotics taken for several months to eradicate the bacteria.
  • Directly Observed Therapy (DOT) is often used to ensure patients take their medications as directed.

4. Fungal Lung Infections:

  • Fungal lung infections may require antifungal medications, especially in individuals with weakened immune systems or severe infections.
  • Treatment duration and specific antifungal drugs depend on the type of fungal infection.

5. Supportive Care:

  • Regardless of the type of lung infection, supportive care is essential to help manage symptoms and promote recovery.
  • Rest and staying hydrated are vital for the healing process.
  • Over-the-counter medications can help relieve fever, pain, and cough.
  • In some cases, the best hospital in Patna may prescribe bronchodilators to open your airways and simplify breathing.

6. Hospitalization:

Severe lung infections or complications may require hospitalization for close monitoring and intravenous antibiotics or antiviral medications.

7. Preventive Measures:

  • Preventive measures such as vaccination against influenza and pneumococcal infections can reduce the risk of severe lung infections, especially in vulnerable populations.
  • Maintaining good hygiene, such as regular handwashing, can help prevent the spread of respiratory infections.

It's important to follow the doctor's instructions carefully, especially regarding medication dosages and the duration of treatment. Seeking prompt medical attention and adhering to the prescribed treatment plan can lead to effective management and faster recovery from lung infections. People over 65 years of age, kids below 2 years of age, and people suffering from a compromised immune system or chronic health conditions must approach a pulmonologist if they encounter any symptoms of a lung infection. They will benefit the patients with proper evaluation and treatment.

Lung infection can cause mild to severe symptoms and ailment. It can be serious if not treated. You may have to visit a pulmonologist if your cough persists for more than 3 weeks or you face trouble breathing. Furthermore, you can visit the Apollo hospital in Patna if you face severe chest pain, a high fever, cough with mucus, or a bluish color in your fingertips or lips.  Depending on the symptoms, the patients may need antibiotics and the pulmonologist may prescribe them accordingly.


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