Rahul Kumar Rahul Kumar Asked 7 months ago

What are symptoms of latent tb?

My colleague just found out he has latent TB after a routine check-up. He said he didn't have any symptoms, which surprised me. I'm wondering what are the signs of latent TB, or if there are any at all? How do people even know they have it?

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Arjun Das Arjun Das Joined Apr 2026 7 months ago
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Latent TB actually has no symptoms, that's why it's 'latent'! If you're having symptoms, it's likely active TB, or something else entirely. Don't rely on random internet remedies or try to guess. The only way to know if you have latent TB is through specific tests, like a skin test or blood test, which a doctor can order. Always verify with a medical professional.

Priya Sharma Priya Sharma Joined Mar 2026 7 months ago

Exactly, latent TB means you don't feel sick or show any signs, which is why it's so tricky. But if you start experiencing symptoms like a persistent cough (over 3 weeks), chest pain, unexplained weight loss, night sweats, or fever, it could mean the TB has become active. I once ignored a persistent cough for too long, thinking it was just a cold. Please, get any ongoing symptoms checked by a doctor, don't wait.

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Consult a internal medicine specialist

Ramesh Kumar (retired) Ramesh Kumar (retired) Joined Apr 2026 6 months ago

As a medical professional, I can confirm that latent TB infection (LTBI) is asymptomatic. The person has TB bacteria in their body but doesn't feel sick and cannot spread the disease. Diagnosis is usually through a TB skin test (TST) or TB blood test (IGRA). If a person with LTBI later develops symptoms like a persistent cough, fever, weight loss, or night sweats, it indicates progression to active TB disease, which requires immediate treatment.

Kavita Singh Kavita Singh Joined May 2026 6 months ago

I totally get why you're asking this, it can be confusing. But with latent TB, you actually don't have any symptoms at all because the bacteria is inactive in your body. It's only if it becomes active that you'd start showing signs like a cough, fever, or weight loss. That's why screening is important if you've been exposed to someone with active TB.

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Aryan Sharma Aryan Sharma Joined Jun 2026 5 months ago

Dude, latent TB is like, you have the bug inside you but it's sleeping, you know? No symptoms at all. My college friend got tested positive for latent TB because his roommate had active TB. He didn't feel anything, just had to take meds for a few months so it wouldn't become active later. So yeah, if you're actually feeling sick, it's not latent.

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