Pulmonary Tuberculosis Specialists in Telangana
Pulmonary tuberculosis is a contagious bacterial infection of the lungs caused by Mycobacterium tuberculosis, spread through airborne droplets when an infected …
Health Conditions A–Z
LabDekho500+ Diseases & Conditions Explained
Understand symptoms, causes, treatment options and prevention for hundreds of conditions — written for patients, reviewed for accuracy.
What is Pulmonary Tuberculosis?
Pulmonary tuberculosis is a contagious bacterial infection of the lungs caused by Mycobacterium tuberculosis, spread through airborne droplets when an infected person coughs, sneezes, or speaks. India carries one of the highest burdens of tuberculosis in the world, making it a major public health priority despite being both preventable and curable. The infection typically develops slowly, with the bacteria capable of remaining dormant in the body for years in a latent form before becoming active, particularly if the immune system weakens. Active pulmonary tuberculosis causes progressive lung damage and can be fatal without treatment, while also posing a risk of transmission to close contacts. A full course of multi-drug antibiotic therapy over several months is required to achieve a complete cure and prevent the emergence of drug-resistant strains.
Severe
Common — India accounts for a substantial share of tuberculosis cases worldwide, though rates are declining under national control programmes
Yes
Causes of Pulmonary Tuberculosis
Caused by infection with Mycobacterium tuberculosis bacteria, transmitted through inhalation of airborne droplets released by a person with active pulmonary disease. Close, prolonged contact with an infectious individual, particularly in crowded or poorly ventilated living conditions, significantly increases transmission risk. Risk factors for progression from latent infection to active disease include HIV infection, diabetes, malnutrition, smoking, and other conditions that weaken the immune system.
Symptoms of Pulmonary Tuberculosis
Persistent cough lasting more than two weeks, coughing up blood or blood-streaked sputum, chest pain, unexplained weight loss, night sweats, fever, fatigue and weakness, loss of appetite
Treatment & Types of Pulmonary Tuberculosis in Telangana
Treatment requires a combination of multiple antibiotics, typically including isoniazid, rifampicin, ethambutol, and pyrazinamide, taken consistently for a minimum of six months under directly observed therapy to ensure completion and prevent drug resistance. Drug-resistant tuberculosis requires longer and more complex treatment regimens with second-line medications. Nutritional support and management of contributing conditions such as diabetes or HIV are important alongside antibiotic therapy for successful outcomes.
Pulmonary tuberculosis exists as latent TB, where the bacteria remain dormant in the body without causing symptoms or being contagious, and active TB, where the bacteria are actively multiplying and causing illness and potential transmission to others. Active disease is further classified as drug-sensitive or drug-resistant, including multidrug-resistant TB, which does not respond to the two most effective first-line antibiotics and requires longer, more complex treatment regimens with second-line medications.
Pulmonology Specialists in Telangana (0)
No specialists listed yet in Telangana — browse all doctors instead.
Frequently Asked Questions
What is the difference between latent and active TB?
In latent TB the bacteria are dormant, cause no symptoms, and cannot be spread to others, while in active TB the bacteria are multiplying, causing symptoms like cough and fever, and can be transmitted through the air. Latent TB can be treated preventively to stop it from ever becoming active disease.
Is pulmonary tuberculosis curable?
Yes, it is both preventable and curable with a full course of multi-drug antibiotic therapy, typically lasting a minimum of six months, and completing the entire course is essential to achieve a cure and avoid drug-resistant strains developing. Stopping treatment early is one of the main reasons resistant TB develops.
How contagious is active pulmonary TB?
It spreads through airborne droplets when an infected person coughs, sneezes, or speaks, and close, prolonged contact in crowded or poorly ventilated spaces significantly increases transmission risk. Most casual, brief contact carries a much lower risk than sharing a household or workspace with an infectious person.
Why does treatment take so many months?
Mycobacterium tuberculosis grows slowly and can persist in a dormant state within the body, so a prolonged combination of antibiotics is needed to fully eradicate the bacteria and prevent relapse or the emergence of drug resistance. Directly observed therapy is often used to help ensure the full course is completed.
Can TB come back after being cured once?
Yes, reinfection or relapse is possible, particularly in someone with ongoing risk factors like HIV, diabetes, or malnutrition that weaken the immune system, so completing the full treatment course and managing these conditions afterward both help prevent recurrence. Any return of persistent cough or weight loss after treatment should be evaluated promptly.