Tuberculosis Symptoms: What to Watch For

TB is a sneaky infection that often starts in the lungs. You might think it’s just a bad cold, but the signs can tell you otherwise. Spotting the right symptoms early can save you time, treatment, and complications.

Common early signs

Most people with active TB notice a persistent cough that lasts three weeks or longer. It may start dry and later bring up sputum, sometimes even a little blood. If you’re coughing a lot and it isn’t getting better, that’s a red flag.

Fever shows up without a clear cause, usually in the evenings. It’s often low‑grade, but it can spike when the infection is worsening. Pair the fever with night sweats that soak your sheets, and you have another classic TB clue.Weight loss happens even when you’re eating normally. The body burns extra energy fighting the bacteria, so you may feel weaker and notice a shrinking waistline.

Feeling unusually tired or short of breath, especially during everyday activities, is common. The lungs struggle to get enough oxygen, making simple tasks feel hard.

When to see a doctor

If you have a cough that won’t quit, fever, night sweats, or unexplained weight loss, schedule a visit right away. Doctors will ask about recent travel, exposure to TB patients, or any immune‑system issues that raise risk.

During the appointment, expect a chest X‑ray and a sputum test. These tools confirm whether Mycobacterium tuberculosis is behind your symptoms. Early diagnosis means a shorter, more effective treatment plan.

Even if you only have one or two signs, don’t wait. TB can spread to other organs, leading to more serious problems like spinal or kidney infection. Prompt treatment stops the spread and helps you recover faster.

Remember, TB isn’t just a historical disease. It’s still around, especially in crowded living conditions and places with limited healthcare. Knowing the symptoms puts you in charge of your health.

Bottom line: a cough that sticks around, a fever that keeps coming back, night sweats, and sudden weight loss are the big warning lights. Call your doctor as soon as you notice them, get tested, and follow the treatment plan. Quick action keeps TB from taking over your life.