Why does a newborn spit up yellow milk?

Normally, the milk spit out by a baby is milky white, and the color of the milk eaten is the same as the protruding color. However, some children have poor stomachs, which may cause the milk to be spit out after being decomposed and changed. This symptom should be considered abnormal. If the baby has a fever or a painful expression, you need to go to the hospital for examination in time.

What kind of vomiting is pathological vomiting?

Pathological spitting up is spitting up caused by physical illness. For example, poor gastrointestinal function, upper respiratory tract infection, and brain disease may cause vomiting. It can happen to babies of any age and with any disease. Spitting out milk is in the form of jets. Generally, all the milk in the stomach will be vomited out, and gastric juice will also be vomited out. If there is a long interval between feedings, the baby will vomit out semi-digested milk with milk lumps and a sour taste.

Physiological spitting up is a normal phenomenon in infancy because the baby's stomach is very small and horizontal, and the baby appears to be lying sideways when viewed from the front. The cardia connecting to the esophagus is wider and has a poorer closing effect than that of adults, while the pylorus connecting to the small intestine is relatively tight, which is not conducive to ventilation. If the baby inhales air while feeding, the air will rise after the baby finishes feeding and push up a small amount of milk.

Pathological spitting up is spitting up caused by physical illness. For example, poor gastrointestinal function, upper respiratory tract infection, and brain disease may cause vomiting. It usually occurs before 4 months of age, especially in newborns.

After eating, a small amount of milk is spit out, or a mouthful of milk is burped. Generally, the amount is not large and it manifests as overflow or light spitting up. The spitted-out milk is still in its original liquid state. There is no painful expression after vomiting, and it may even be more pleasant. It can happen to babies of any age and with certain diseases, and the spitting up is in the form of jets. Generally, all the milk in the stomach will be vomited out, and gastric juice will also be vomited out. If there is a long interval between feedings, the baby will vomit out semi-digested milk with milk lumps and a sour taste. In addition to vomiting, there are also other symptoms of physical discomfort.

Pathological spitting up in infants is often an early sign of a serious illness: 1. Amniotic fluid aspiration. When newborns inhale large amounts of amniotic fluid, it has a certain stimulating effect on the stomach. Vomiting often occurs soon after birth, vomiting clear water, mucus or a small amount of bloody fluid, but the general condition is good.

2. Pyloric spasm. In the neonatal period, due to temporary dysfunction of the pyloric function, projectile vomiting often occurs shortly after feeding. Clinically, large amounts of milk and milk clots are often vomited, and the condition is sometimes better and sometimes worse.

3. Newborn constipation. Newborns generally begin to excrete meconium within 10 hours after birth. If they have very little bowel movement or the time for meconium excretion is significantly prolonged in the first few days after birth, abdominal distension and vomiting may also occur clinically.

4. Infection is the most common cause. Including gastrointestinal infection, otitis media, pneumonia, sepsis, meningitis, etc.

5. Intussusception and intestinal ascariasis.

6. There are 5 types of digestive tract malformations.

First, esophageal atresia. Newborns experience severe vomiting soon after birth, vomiting everything they eat, often vomiting foamy liquid like that vomited by crabs.

Second, pyloric hypertrophic stenosis. Vomiting often occurs about 2 weeks after birth and progressively worsens, often manifesting as projectile vomiting. During abdominal examination, date-pit-like lumps can be felt.

Third, intestinal atresia. Persistent vomiting often occurs within one day after birth. The symptoms are often relieved after spitting up milk, but vomiting starts again a few hours after feeding. The vomitus is often accompanied by milk, bile, and feces-like fluid.