Reasons for spitting up in four-month-old babies

It is a common phenomenon for 4-month-old babies to spit up milk, but if this phenomenon exists for a long time, it means that there is a problem. Therefore, many parents want to fully understand the reasons why 4-month-old babies spit up milk. The following content provides a detailed answer. For many parents, in order to prevent their children from spitting up milk while feeding, they must have a comprehensive understanding.

Spitting up is a common phenomenon in infants. There are two reasons for this: one is that it is a symptom of systemic or gastrointestinal disease; the other is that the anatomical and physiological characteristics of the infant's gastrointestinal tract make vomiting prone to occur. Generally speaking, vomiting caused by the second reason is more common.

First of all, we need to figure out whether the baby is spitting up milk or spitting up milk. The two have different meanings, causes and treatments. The amount of spitting up is relatively large, and may occur shortly after feeding or half an hour later. Before spitting up, the child will open his mouth and stretch his neck, with an expression of pain and discomfort. The amount of milk spitting up is small and usually occurs right after a meal. It usually stops after one or two mouthfuls.

The milk taken in through the mouth first passes through a tube called the esophagus and then enters the stomach. The stomach has two doors, one is connected to the esophagus called the cardia, which is the entrance of the stomach, and the other is connected to the intestine called the pylorus, which is the exit of the stomach. The tension of the esophageal muscles in infants and young children is low, which can easily cause expansion. At the same time, the peristalsis is relatively slow, so food can easily accumulate. The cardia is relatively loose and not tightly closed, so it can be easily opened by food. When there is a little more food in the stomach, it can break open the cardia and flow back into the esophagus. The pylorus is tightly closed and can be easily stimulated by food to cause spasm, which makes the exit resistance greater, and food passes slowly or with difficulty. Food then flows back from the pylorus to the cardia and breaks out.

The stomach of a newborn baby, viewed from the front, is lying horizontally and is in an unstable state, while the cardia (the entrance to the stomach) is relatively loose. That is to say, when adults eat, after food enters the stomach, the cardia will contract to prevent food from flowing back into the esophagus; but because the cardia of infants' stomach cannot contract well, the milk that enters the stomach can flow back into the esophagus more easily. In addition, compared with adults, the larynx of newborns is higher, and their way of sucking the nipple is clumsy, which makes it easy for air to be inhaled into the stomach along with the milk when feeding. Therefore, when the child burps or shakes his body, the milk he eats is more likely to be spit out. If a child spits up milk occasionally and is in good spirits, he or she may not be sick. If the child vomits several times in a row and vomits every time during feeding, you should pay attention to whether the child has a fever, the condition of his bowel movements, any changes in his spirit, etc. There may be problems with the gastrointestinal tract itself, or there may be lesions in other systems. You should take your child to the hospital for examination.

After understanding the above content, I believe you have a comprehensive understanding of the reasons why 4-month-old babies spit up milk. After a comprehensive understanding, in order to prevent your baby from spitting up milk while feeding, after understanding the reasons, you should take the correct corresponding treatment as soon as possible to prevent your child from spitting up milk while feeding. This way, your child can absorb better and be healthier.