Jump to Content

bacille Calmette-Guérin (BCG) vaccine

Release date2016/12/21

BCG injection care

l   Normal reactions to the vaccine are characterized by the formation of a bluish-red pustule within 2–3 weeks after vaccination.

l   After approximately 6 weeks, the pustule ulcerates, forming a lesion approximately 5 mm in diameter. Draining lesions resulting from vaccination should be kept clean and bandaged.

l   Scabs form and heal usually within 3 months after vaccination. BCG vaccination generally results in a permanent scar at the puncture site.


BCG long term Complication

Although BCG vaccination may results in local adverse effects, serious or long term complications are rare. BCG vaccinations are usually administered by the intradermal method, and reactions that can be expected after vaccination include moderate axillary or cervical lymphadenopathy and induration and subsequent pustule formation at the injection site. If this happened to your child, please connect your doctor.