What should you know about latent TB in pregnancy?

Latent TB means TB germs are contained by the immune system without symptoms of active disease. It is not spread to family members through ordinary contact. Pregnancy does not turn latent infection into active disease automatically, but the clinical team weighs the timing of treatment against the risk of untreated infection. The decision depends on your test result, contact history, immune health, signs of active TB, stage of pregnancy and other medicines. A screening result is not enough to choose treatment without this review.

Tell your obstetric or maternity team and the clinician who arranged TB testing as soon as possible. Bring details of previous TB treatment, medicines, allergies, liver problems and any known exposure. Further assessment may be needed to exclude active disease. If treatment is recommended, take it exactly as directed and attend planned checks; do not stop or delay doses because of nausea without contacting the team. Ask how medicines fit with prenatal supplements and other prescriptions. Keep the people coordinating your pregnancy and TB care informed of changes.

Seek prompt medical review for a persistent cough, fever, night sweats, unexplained weight loss, chest pain or worsening breathlessness. Get urgent help for severe breathing difficulty, coughing blood, fainting, confusion or sudden deterioration. These symptoms require assessment for active TB and other pregnancy-related conditions. Contact the treatment team urgently for yellowing of the skin or eyes, dark urine, severe vomiting, a widespread rash or other concerning medicine reaction.

Ask whether active TB has been excluded, which tests are needed, and why treatment is advised now or later. Ask how the plan affects pregnancy, breastfeeding and the baby, which side effects require immediate contact, and how your liver and other medicines will be monitored. Ask who to call outside routine appointments.