Babies with diarrhea should not be vaccinated. During diarrhea in younger children, the body’s immunity is poorer, some babies have more severe diarrhea, and children are also prone to dehydration. If the baby is vaccinated at this time, there may be an immune reaction that will cause the baby to have a fever and may worsen the symptoms of diarrhea. Moreover, after vaccination of the baby, the body will have an immune reaction, which will lead to a temporary decrease in the child’s body immunity, which will easily lead to bacterial or viral infections, which will affect the child’s health and affect the effectiveness of the vaccination. Therefore, children should not be vaccinated when they have diarrhea. If you want to vaccinate your child, you can wait for your child to recover completely for more than a week before you go to an immunization station to have your child vaccinated, and pay attention to the vaccination site for any adverse reactions after the vaccination.