Infants and young children refusing to feed after vaccination is a common problem that worries many parents. Is this a serious issue? What are the causes and how can it be resolved?
The information compiled in the article below by Hello Bacsi will answer questions surrounding the issue of infants refusing to breastfeed after vaccination.
Reasons why infants refuse to feed after vaccination.
Your baby has just received vaccinations and is showing signs of feeding less than before or refusing to breastfeed. This is causing you a lot of worry and you don’t know why infants and young children stop breastfeeding after vaccinations?
Infants refusing to breastfeed after vaccination is a common side effect of vaccines. The main reasons for this are:
- The immune system ‘s function is to recognize the pathogens contained in vaccines , thereby creating antibodies to fight against the diseases being prevented. After vaccination, a child’s immune system must work harder to remember the pathogen and create antibodies against viruses or bacteria. Because children are so young and have limited tolerance, this can make them feel more tired and easily exhausted. Therefore, children often experience a loss of appetite, leading to reduced or even complete refusal to breastfeed after vaccination. In addition, vaccine side effects can include fever and diarrhea, making the child more tired and less likely to breastfeed. Especially if the child’s resistance is weak, the immune system will have to work harder, making the problem of refusing to breastfeed more serious.
- The second reason why infants and young children refuse to breastfeed after vaccination is that they are often afraid of the unfamiliar environment during vaccination, and the pain of the injection causes them to cry and fuss during the procedure , leading to exhaustion and fatigue. Furthermore, because the injection site is painful and swollen, children cry more, becoming irritable, breastfeeding less, or even refusing to breastfeed altogether.
To minimize fussiness and refusal to feed in infants after vaccinations, please refer to the article ” 6 helpful tips to reduce pain after vaccination for children” .
Signs that a baby refuses to breastfeed after vaccination.
After vaccination, infants may refuse to feed or feed less than usual for up to 3 or 7 days. However, many parents often confuse this refusal to feed after vaccination with a lack of focus during feeding. So, what are the signs of infants and young children refusing to feed after vaccination?
Refusal to feed is when a baby suddenly refuses to feed, even though they were feeding regularly before. You may notice typical signs of refusal to feed in infants or young children after vaccination, such as:
- The baby refuses to accept the mother’s breast when breastfeeding, or refuses to latch onto the formula bottle nipple.
- The baby seems unhappy and uncomfortable during the breastfeeding process.
However, don’t confuse this with the phenomenon of babies becoming distracted while breastfeeding. Distraction while breastfeeding occurs when a baby latches onto or bites the nipple and continues to breastfeed afterward. Regarding infants or young children refusing to breastfeed after vaccination, they will usually stop accepting the mother’s breast for a certain period of time. Additionally, some mothers often confuse the issue of infants refusing to breastfeed after vaccination with spontaneous weaning . However, very few children suddenly wean themselves before the age of two .
Consequences of babies refusing to breastfeed after vaccination.

Although the phenomenon of infants and young children refusing to breastfeed after vaccination usually resolves within a maximum of about 10 days and the child can resume breastfeeding normally afterward, in some special cases, the refusal to breastfeed may be prolonged, negatively affecting the child’s health. Some consequences of infants and young children refusing to breastfeed after vaccination include:
- The child is developing slowly and losing weight rapidly.
- The body feels tired and sluggish due to not receiving enough essential nutrients.
- Pale skin
- If a child refuses to breastfeed after vaccination and this persists, they are more likely to develop chronic anorexia .
- This led to a deep-seated obsession with vaccinations and food.
Therefore, if infants and young children refuse to feed after vaccination, you need to take them to the doctor for treatment. Additionally, if the refusal to feed is accompanied by fever, body heat, and excessive crying, you should take the child to the hospital for an early examination.
How to address the issue of a baby refusing to feed after vaccination.
Although infant refusal to feed after vaccination can have serious consequences, it’s crucial to understand that vaccination is absolutely essential and shouldn’t be skipped simply because of the fear of your baby refusing to feed. Instead, consider the following methods to address infant refusal to feed after vaccination:
- Breastfed babies need to be fed more frequently. For bottle-fed babies, mothers need to divide feedings into smaller portions throughout the day to ensure the baby still receives enough energy and essential nutrients.
- Maintain your breast milk supply by expressing milk regularly so that your body understands that it still needs to produce milk during this period.
- Do not force your baby to breastfeed, as this can make them uncomfortable and cry more, or even develop a fear of breastfeeding.
- Don’t be discouraged if your baby refuses to breastfeed. Try feeding them later. You can try feeding them when they’re very sleepy after a bath, or try bottle feeding or spoon-feeding. This might be difficult and time-consuming at first, but to ensure your baby gets enough water and nutrients, you should be patient and do it regularly.
- After some time, you can try breastfeeding your baby again to observe their reaction.
If your baby refuses to breastfeed for too long, take them to the doctor for a health check-up and appropriate treatment. Hopefully, the above information has helped you understand everything about the issue of newborns refusing to breastfeed after vaccination.































