Some people do not experience any symptoms of the infection, and the condition is known as latent TB. It can stay dormant for several years before turning into active tuberculosis. Mostly, it starts with coughing that lasts for over three weeks and difficulty breathing.

Common symptoms include:

• Intermittent cough lasting for more than three weeks
• Coughing
• Sudden weight loss
• Loss of appetite
• Fatigue
• Difficulty breathing

It is more common in people having pre-existing diseases like HIV and diabetes. The infection starts from the lungs and can further spread to different body parts like the kidney, brain, bone marrow, and spine. Symptoms vary based on the body organ affected.