India carries the world’s largest TB burden, so this answer matters to more donors than any imported guideline admits. Active TB defers you. Cured TB does not disqualify you for life.
Active TB
While on treatment — or sick with untreated TB — you cannot donate. Three reasons stack up:
- Your body is fighting an infection; 450 mL is the last thing it needs
- TB medicines are strong and long-course (six months minimum) — donation on top strains recovery
- Untreated or partially treated infection is exactly what screening exists to keep out of units
After cure
Complete the full course (stopping early is how TB returns harder), get your doctor’s confirmation of cure, regain weight and strength — and you are eligible again. TB history with documented treatment is not a permanent bar; declare it and let the centre confirm.
The stigma sentence
TB carries social weight it does not deserve. Millions of Indians complete treatment and live entire healthy lives — and donate blood again. The register cares about your current health, not your past X-ray.