Could You Have Tuberculosis? Ten Symptoms to Watch For

10. Symptomless Tuberculosis

Although one or more of the previously mentioned symptoms often occur in tuberculosis patients, one of most surprising facts about this illness is that in 90% of cases, the disease is latent and the patient shows no apparent signs of infection. Tuberculosis can develop for years before any symptoms become visible. Even though these people do not seem to be ill, they may still be contagious and, if a doctor identifies the disease, should be treated accordingly.