Please call on +91 8586805004, 8368988131 (Hours of Operation at Clinic 5 to 8 PM Daily (sunday off)
Please call on +91 8586805004, 8368988131 (Hours of Operation at Clinic 5 to 8 PM Daily (sunday off)
Tuberculosis (TB) is an infectious disease caused by bacteria called Mycobacterium tuberculosis. It most commonly affects the lungs, where it is known as pulmonary TB, but it can also affect other parts of the body.
TB can develop gradually, and its symptoms may sometimes be mistaken for a routine respiratory infection. A cough that continues for weeks, unexplained weight loss, fever, night sweats or unusual tiredness should therefore not be ignored.
If you are looking for a TB Specialist in Delhi, understanding the common symptoms, diagnostic process and importance of timely treatment can help you know when professional medical evaluation is appropriate.
Tuberculosis is a bacterial infection that most often affects the lungs. It can spread from person to person through the air when someone with infectious pulmonary TB coughs, sneezes or speaks.
Not everyone infected with TB bacteria develops active TB disease. Some people have what is known as TB infection, where the bacteria remain in the body without causing active disease or symptoms. Active TB disease can develop when the bacteria become active and multiply.
The lungs are the most common site of TB, but TB can also affect organs such as lymph nodes, kidneys, bones and the brain.
Symptoms can vary depending on the part of the body affected. Pulmonary TB may cause respiratory symptoms along with general symptoms of infection.
Common symptoms may include:
A persistent cough is particularly important when it continues rather than gradually improving.
However, these symptoms are not specific to TB. Conditions such as other respiratory infections, asthma, pneumonia and several other diseases can cause similar symptoms. Medical testing is therefore necessary to determine the actual cause.
A prolonged cough is one of the important symptoms associated with pulmonary TB.
However, having a long-lasting cough does not automatically mean that a person has tuberculosis. Persistent cough can also occur because of asthma, allergies, acid reflux, smoking, postnasal drip, COPD and other respiratory conditions.
If you have a cough that continues for several weeks, particularly when accompanied by fever, night sweats, weight loss, chest symptoms or blood in sputum, it is important to seek medical evaluation.
You can also read our detailed guide on persistent cough, its causes and when to consult a pulmonologist for additional information.
Certain symptoms may require prompt medical attention.
Blood in sputum can occur in several respiratory conditions, including TB. It should not be ignored and requires appropriate medical assessment.
Losing weight without intentionally changing your diet or activity level can have many possible causes. When it occurs along with persistent respiratory symptoms, medical evaluation is advisable.
Repeated fever and significant night sweating can occur with TB and other infections. These symptoms should be considered in the context of the patient’s complete medical history.
Ongoing tiredness, reduced appetite and weakness may accompany TB, although they can also occur with many other health conditions.
TB bacteria can spread through the air from a person with active infectious pulmonary or laryngeal TB when they cough, speak or sing.
The risk of transmission can depend on factors such as the infectiousness of the person, duration and closeness of exposure, ventilation and other environmental conditions.
TB is not generally spread through casual contact such as shaking hands or sharing food and drinks.
People who may have been exposed to infectious TB may need medical assessment to determine whether testing is appropriate.
TB can affect different parts of the body.
When TB affects the lungs, it is called pulmonary TB. Symptoms may include:
When TB affects organs outside the lungs, it is called extrapulmonary TB.
Depending on the affected organ, symptoms may include swollen lymph nodes, abdominal symptoms, bone or joint problems, headaches or other neurological symptoms.
Because symptoms can vary significantly, diagnosis should be based on appropriate medical evaluation and testing rather than symptoms alone.
TB diagnosis depends on whether the doctor suspects active TB, TB infection or TB affecting a particular part of the body.
For suspected pulmonary TB, doctors may consider:
Tests for TB infection, such as a TB blood test or tuberculin skin test, can indicate whether a person has been infected with TB bacteria, but they do not by themselves establish that someone has active pulmonary TB.
The exact tests required depend on symptoms, medical history and clinical findings.
TB is treatable and curable when appropriate treatment is taken as prescribed.
However, untreated active TB can become more severe and may also increase the risk of transmission to other people.
Early medical evaluation can help identify the cause of symptoms, confirm the diagnosis and determine the appropriate treatment approach.
If TB is suspected, it is important not to rely solely on home remedies or over-the-counter medicines.
Active TB is treated with a combination of specific anti-TB medicines. Treatment usually involves multiple medicines and can last for several months, depending on the type of TB and the treatment regimen.
One of the most important aspects of TB treatment is taking medicines exactly as prescribed and completing the recommended treatment course.
Stopping treatment early or taking medicines irregularly can contribute to treatment failure and drug resistance.
Patients should therefore remain in contact with their healthcare provider and follow the prescribed treatment plan.
People with significant exposure to TB may also need evaluation even when they do not have obvious symptoms.
Reducing exposure to infectious TB and identifying active cases early are important parts of TB control.
Depending on the situation, prevention may involve:
The BCG vaccine is widely used in many countries and provides protection against severe forms of TB in children. Its protection against pulmonary TB in adults is more variable.
Early symptoms can include persistent cough, fever, night sweats, tiredness, loss of appetite and unexplained weight loss. Some people may have few symptoms, particularly in certain forms of TB.
A cough associated with pulmonary TB can persist for several weeks or longer. However, the duration of a cough alone cannot confirm TB because many other conditions can cause prolonged coughing.
Yes. Drug-susceptible TB is generally curable with an appropriate combination of anti-TB medicines taken correctly for the prescribed duration.
Yes. TB infection can occur without active TB disease and may not cause symptoms. Medical testing helps distinguish TB infection from active disease.
Active pulmonary or laryngeal TB can be infectious and spread through the air. TB affecting other parts of the body is generally not infectious through the air unless there is involvement of an infectious respiratory site.
A persistent or unexplained cough deserves medical evaluation, particularly if it is accompanied by fever, night sweats, weight loss, blood in sputum or breathing problems. A pulmonologist can assess possible respiratory causes, including TB.
A prolonged cough should not always be assumed to be a simple seasonal infection. TB is one of several possible causes of persistent respiratory symptoms, and proper testing is needed to establish the diagnosis.
If you have symptoms that may be related to TB or another lung condition, consulting a qualified TB Specialist in Delhi can help determine whether further investigation is required.
Dr. Naveen Ailawadi provides consultation for respiratory and chest-related conditions, including TB and other lung problems. A proper clinical assessment can help identify the possible cause of symptoms and guide the appropriate next steps.
📞 Call for ConsultationMedical Disclaimer: This article is intended for general health education and does not replace professional medical diagnosis, treatment or advice. If you are coughing up significant amounts of blood or experiencing severe breathing difficulty, seek urgent medical care.
© 2018. Naveen Ailawadi. All Rights Reserved. Site Designed & Developed By GTM Infotech