Reviewed by medical experts • For informational purposes only
TB progresses from latent (silent) infection to early active disease with cough and fever, then advanced disease - each stage is curable, and treatment early prevents spread.
Stage 1: Exposure and latent infection. After inhaling TB bacteria, most people's immune systems contain them. This is latent TB: no symptoms, no spread to others, chest X-ray normal, only a blood or skin test shows it. It can persist silently for years - roughly 5-10% of latent infections turn active over a lifetime, half of those in the first two years. Preventive treatment exists for high-risk people (close contacts, HIV patients, those starting immunosuppression).
Stage 2: Early active disease. The bacteria overcome the defences, usually in the lungs. Symptoms creep in: a cough that does not settle beyond two weeks, low evening fevers, night sweats, falling appetite and weight, tiredness. Many people dismiss this stage as "a stubborn cold" - losing months while remaining infectious to family. A cough over two weeks should always be tested.
Stage 3: Established pulmonary TB. Without treatment: persistent cough with sputum, possible blood in sputum, chest pain, breathlessness, worsening weight loss and fever. The patient is most infectious now. Diagnosis is straightforward - sputum tests (smear, cartridge-based molecular tests like CBNAAT) plus chest imaging.
Stage 4: Advanced and disseminated disease. Untreated TB can destroy lung tissue and spread to lymph nodes, spine, brain (TB meningitis), abdomen and other organs - life-threatening and harder to treat. This stage is entirely preventable through early testing.
Stage 5: Cure or chronic disease. With the full 6-month course, TB is cured. With interrupted treatment, it becomes chronic and potentially drug-resistant - a far harder battle.
Remember: latent is silent, early active looks like a stubborn cough - the two-week cough rule catches TB while it is easiest to cure.
Kshaya rog's classical progression parallels these stages - descriptive only. Staging and treatment belong to the NTEP programme.
Written By
Sanatan Ayurveda
BDS
Reviewed By
Dr. Varun Gupta
MD Pharmacology, MBBS
Last updated on
27 Sep 2022 • 06:23 PM (IST)
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No Ayurvedic or herbal treatment cures TB - only the full antibiotic course does; Ayurvedic nutrition and rest can support recovery alongside the medicines.
TB is caused by Mycobacterium tuberculosis spreading through air from an untreated patient; malnutrition, diabetes, smoking and weakened immunity raise the risk of disease.
TB is treated with a free 6-month combination antibiotic course (HRZE); every dose matters - stopping early causes drug-resistant TB, a far worse disease.
Prevent TB by testing every 2-week cough, completing treatment fully, ventilating rooms, covering coughs, BCG vaccination for children, and screening family contacts.
Tuberculosis (TB) is a bacterial infection that mainly attacks the lungs; it is completely curable with a full 6-month medicine course, free at government centres in India.
