Tuberculosis history and symptoms

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Alejandro Lemor, M.D. [4]

Tuberculosis history and symptoms

Clinical history (what to ask)

Focus history on pre-test probability (exposure + host factors) and symptom pattern/duration.

Epidemiologic risk (e.g., close contact with infectious TB, birth/residence in high-incidence settings, congregate settings).Trajman A, Campbell JR, Kunor T; et al. (2025). "Tuberculosis". The Lancet. doi:10.1016/S0140-6736(24)02479-6. PMID 40057344 .CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link) Lewinsohn DM, Leonard MK, LoBue PA; et al. (2016). "Official American Thoracic Society/Infectious Diseases Society of America/Centers for Disease Control and Prevention Clinical Practice Guidelines: Diagnosis of Tuberculosis in Adults and Children". Clinical Infectious Diseases. doi:10.1093/cid/ciw694. PMID 27932390.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)

Prior TB infection or TB treatment (including incomplete treatment and concern for drug resistance).

Immunosuppression (especially HIV) and other conditions associated with atypical or extrapulmonary presentations.Meintjes G, Maartens G (2024). "HIV-Associated Tuberculosis". The New England Journal of Medicine. doi:10.1056/NEJMra2308181.

Pulmonary tuberculosis

Pulmonary TB accounts for approximately 70–80% of TB disease and typically presents as a subacute-to-chronic illness with symptoms evolving over weeks to months.

Common symptoms include:Dheda K, Barry CE, Maartens G (2016). "Tuberculosis". Lancet. doi:10.1016/S0140-6736(15)00151-8. PMID 26842682.CS1 maint: Multiple names: authors list (link)

Cough (often persistent for >2–3 weeks; may progress from dry to productive)

Fever (often low-grade/intermittent)

Night sweats

Unintentional weight loss / anorexia

Hemoptysis (approximately 20–30% of cases; may range from blood-streaked sputum to massive hemoptysis, including from bronchial artery erosion or Rasmussen's aneurysm).Zumla A, Raviglione M, Hafner R, von Reyn CF (2013). "Tuberculosis". The New England Journal of Medicine. doi:10.1056/NEJMra1200894. PMID 23432735.CS1 maint: Multiple names: authors list (link)

Pleuritic chest pain (may suggest pleural/subpleural involvement)

Dyspnea (usually more advanced/extensive disease or large effusion)

Fatigue / malaise

WHO four-symptom screen (people with HIV)

In people with HIV, the WHO symptom screen for active TB consists of: cough of any duration, fever, night sweats, and weight loss. The presence of any one symptom constitutes a positive screen.Dhana A, Hamada Y, Kengne AP; et al. (2022). "Tuberculosis Screening Among Ambulatory People Living With HIV: A Systematic Review and Individual Participant Data Meta-Analysis". The Lancet Infectious Diseases. doi:10.1016/S1473-3099(21)00679-6. PMID 35151370 .CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)

In an individual participant data meta-analysis of 22 studies (n=15,666), the pooled sensitivity was 85% (95% CI 76–91) with specificity 37% (25–51) in people not on ART, while sensitivity was 53% (35–71) with specificity 71% (51–85) in those on ART.

Symptom screening can miss subclinical disease, particularly in people on ART.

Subclinical tuberculosis

TB exists on a spectrum from infection to subclinical disease to symptomatic disease. In the ICE-TB framework, subclinical TB is defined by macroscopic pathology with viable Mycobacterium tuberculosis and an associated host response, with symptoms/signs that are absent, unrecognized, or insufficient to prompt care-seeking.Coussens AK, Zaidi SMA, Allwood BW; et al. (2024). "Classification of early tuberculosis states to guide research for improved care and prevention: an international Delphi consensus exercise". The Lancet Respiratory Medicine. doi:10.1016/S2213-2600(24)00028-6. PMID 38527485 .CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)

Among people with untreated HIV, subclinical TB prevalence has been reported to range from 7% to 52%.

National TB prevalence surveys have found that the proportion of bacteriologically confirmed TB that is subclinical varies substantially by definition: a median of 50% did not report survey-specified screening symptoms (range 36–80%), but an IPD meta-analysis of 12 national surveys (n=602,863) found that only up to 28% reported no TB-suggestive symptoms at all (cough, fever, chest pain, night sweats, or weight loss), while up to 83% reported no persistent cough (≥2 weeks).Frascella B, Richards AS, Sossen B; et al. (2021). "Subclinical Tuberculosis Disease—a Review and Analysis of Prevalence Surveys to Inform Definitions, Burden, Associations, and Screening Methodology". Clinical Infectious Diseases. doi:10.1093/cid/ciaa1402. PMID 32936877 .CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link) Stuck L, Klinkenberg E, Abdelgadir Ali N; et al. (2024). "Prevalence of Subclinical Pulmonary Tuberculosis in Adults in Community Settings: An Individual Participant Data Meta-Analysis". The Lancet Infectious Diseases. doi:10.1016/S1473-3099(24)00109-2.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)

Extrapulmonary tuberculosis (by site)

Extrapulmonary TB can affect virtually any organ. Presentation is often constitutional symptoms (fever, night sweats, weight loss) plus site-specific manifestations; presentations may mimic malignancy or other infections, and suspicion should be higher in immunosuppressed patients and with subacute/chronic symptom courses.

Site	Key history/symptoms	Clinical notes
Pleural TB	Pleuritic chest pain, dyspnea, cough, fever; subacute onset over days to weeks	May coexist with pulmonary TB.
TB lymphadenitis	Painless, firm, non-tender lymphadenopathy (often cervical); may become fluctuant and drain via sinus tract	Constitutional symptoms are more common in patients with HIV.
TB meningitis	Subacute headache and fever evolving over days to weeks; prodrome of malaise/anorexia/low-grade fever for 1–2 weeks; may progress to confusion, cranial nerve palsies (VI > III > IV > VII), seizures, coma	Symptom duration >5 days helps distinguish TB meningitis from acute bacterial meningitis in clinical practice; urgent evaluation and early empiric therapy are often necessary. MRC staging: I (GCS 15, no focal signs), II (GCS 11–14 or focal signs), III (GCS ≤10).Donovan J, Cresswell FV, Tucker EW; et al. (2026). "A Clinical Practice Guideline for Tuberculous Meningitis". The Lancet Infectious Diseases. doi:10.1016/S1473-3099(25)00364-0. PMID 40840485 .CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link) Thwaites GE, van Toorn R, Schoeman J (2013). "Tuberculous Meningitis: More Questions, Still Too Few Answers". The Lancet Neurology. doi:10.1016/S1474-4422(13)70168-8. PMID 23948180.CS1 maint: Multiple names: authors list (link)
Skeletal TB (including Pott disease)	Chronic back pain, stiffness; progressive deformity; neurologic deficits from cord compression may occur	Often insidious and delayed presentation.
Pericardial TB	Chest pain, dyspnea, cough, fever, night sweats, weight loss	Can present with effusion/tamponade or progress to constriction; more common in HIV-endemic settings.
Genitourinary TB	Dysuria, hematuria, flank pain; infertility, pelvic pain, menstrual irregularity; testicular/scrotal mass	Often diagnosed late; sterile pyuria is a classic clue.
Peritoneal/abdominal TB	Abdominal pain, distension, ascites, fever, weight loss	May mimic peritoneal carcinomatosis or inflammatory bowel disease.
Miliary/disseminated TB	Fever, weight loss, malaise; may present as a sepsis-like syndrome with multi-organ dysfunction	More common in young children and severely immunosuppressed adults, including advanced HIV.

Zumla A, Raviglione M, Hafner R, von Reyn CF (2013). "Tuberculosis". The New England Journal of Medicine. doi:10.1056/NEJMra1200894. PMID 23432735.CS1 maint: Multiple names: authors list (link) Meintjes G, Maartens G (2024). "HIV-Associated Tuberculosis". The New England Journal of Medicine. doi:10.1056/NEJMra2308181.

Atypical presentations / special populations

HIV co-infection

Clinical presentation varies with degree of immunosuppression.Meintjes G, Maartens G (2024). "HIV-Associated Tuberculosis". The New England Journal of Medicine. doi:10.1056/NEJMra2308181. With CD4 >200 cells/μL, presentation resembles TB in HIV-negative individuals (upper lobe infiltrates with or without cavitation). With CD4 2–3 weeks with constitutional symptoms should prompt evaluation for TB in the appropriate epidemiologic context.

Do not exclude TB solely because of absent cough; disseminated, extrapulmonary, and subclinical TB may present without prominent respiratory symptoms, particularly in immunosuppressed patients.

A normal chest radiograph does not exclude pulmonary TB, particularly in advanced HIV; 8–29% of culture-positive cases may have a normal CXR.

References

1. A Clinical Practice Guideline for Tuberculous Meningitis. Donovan J, Cresswell FV, Tucker EW, et al. The Lancet. Infectious Diseases. 2026;26(2):e96-e111. doi:10.1016/S1473-3099(25)00364-0. 2. Tuberculous Meningitis: More Questions, Still Too Few Answers. Thwaites GE, van Toorn R, Schoeman J. The Lancet. Neurology. 2013;12(10):999-1010. doi:10.1016/S1474-4422(13)70168-6. 3. Prevalence of Subclinical Pulmonary Tuberculosis in Adults in Community Settings: An Individual Participant Data Meta-Analysis. Stuck L, Klinkenberg E, Abdelgadir Ali N, et al. The Lancet. Infectious Diseases. 2024;24(7):726-736. doi:10.1016/S1473-3099(24)00011-2. 4. Subclinical Tuberculosis Disease-a Review and Analysis of Prevalence Surveys to Inform Definitions, Burden, Associations, and Screening Methodology. Frascella B, Richards AS, Sossen B, et al. Clinical Infectious Diseases : An Official Publication of the Infectious Diseases Society of America. 2021;73(3):e830-e841. doi:10.1093/cid/ciaa1402. 5. Guidelines for the Prevention and Treatment of Opportunistic Infections in Children With and Exposed to HIV. Bill G. Kapogiannis, Franklin Yates, Wei Li, et al. Office of AIDS Research Advisory Council (2025). 6. Pneumonia in the Very Old. Janssens JP, Krause KH. The Lancet. Infectious Diseases. 2004;4(2):112-24. doi:10.1016/S1473-3099(04)00931-4. 7. Tuberculosis in the Elderly. Caraux-Paz P, Diamantis S, de Wazières B, Gallien S. Journal of Clinical Medicine. 2021;10(24):5888. doi:10.3390/jcm10245888. 8. HIV-Associated Tuberculosis. Meintjes G, Maartens G. The New England Journal of Medicine. 2024;391(4):343-355. doi:10.1056/NEJMra2308181. 9. Tuberculosis. Zumla A, Raviglione M, Hafner R, von Reyn CF. The New England Journal of Medicine. 2013;368(8):745-55. doi:10.1056/NEJMra1200894.