Please Note : While understanding symptoms is good for assessing the health, these are not replacement for a Doctor. Please refrain from self diagnosis and medication.

Common symptoms of TB –

1. Prolonged cough (sometimes with blood)
2. Chest pain
3. Weakness
4. Fatigue
5. Weight loss
6. Fever
7. Night sweats

But often patients with latent TB infection don’t feel sick and are not contagious! That is because, TB has 3 kinds of Infection. When TB germs survive and multiply in the lungs, you have a TB infection.

1. Primary TB Infection: The First Encounter When you’re first exposed to TB bacteria, your body’s immune system goes into action, trying to contain and destroy the invading germs like the way body’s defense systems work. Most people don’t experience any noticeable symptoms during this initial stage. Although, some may develop symptoms such as low fever, fatigue, and a mild cough.
   
   
2. Latent TB Infection: Some times, the primary infection is followed by a latent TB infection. During this stage, the immune system has managed to contain the TB germs within the lungs, effectively building a wall around the infected tissue. The germs remain dormant, unable to cause further harm as long as the immune system keeps them under control. Remarkably, there are no outward symptoms during this latent phase.
   
   
3. Active TB Disease: As good as the last stage sounded, this stage happens when the immune system can no longer control the infection, allowing the TB germs to escape their confinement and spread throughout the lungs or other parts of the body. This active stage can develop shortly after the primary infection or, more commonly, months or even years after the initial latent phase.