Is it normal for the baby to have no scar after BCG?

As we all know, the harm of tuberculosis is relatively great. In order to prevent children from being infected with tuberculosis, China stipulates that babies need to be injected with BCG after birth, which is also the most effective measure to prevent tuberculosis. Of course, the baby can choose to vaccinate at a special time, so is it normal for the baby to finish BCG without leaving any traces? What happened? Does the baby stop vaccinating after BCG without scar?

individual difference

It is necessary to know that children's physical fitness is different, and their reactions to BCG are different, which leads to different local vaccine reactions. Therefore, it is normal for babies to have no traces on their skin after BCG vaccination.

Local reaction

Most babies will have local redness, suppuration and scab 2-3 weeks after BCG vaccination, and there will be scars at the last vaccination site, but the study also shows that 10% babies will not have scars after BCG vaccination, which is related to personal physique.

Review recommendations

It should be noted that some babies have been vaccinated with BCG without any trace, which may be caused by vaccination failure. Parents want to know whether the baby has been vaccinated successfully, and it is recommended to go to the hospital for re-examination. If the inoculation fails, you can consider replanting.

antibody production

In short, leaving no scars after vaccination is also a normal reaction after vaccination, but we should also consider the situation of not being vaccinated. Generally, infants vaccinated with BCG will produce antibodies, but the amount of antibodies produced by each child is different.