#Vomiting is a natural body mechanism. It acts as a defense mechanism, shielding you from negative effects that can come because of ingesting poison, some types of drugs, and having infections. This explains why you feel better after vomiting. Although vomiting is a common phenomenon, vomiting yellow can be worrying. This blog will shed more light on the causes of yellow vomitus and other important facts you should know about this condition. So, let’s begin!
Vomiting yellow shows that your vomitus contains bile. Bile is a greenish-yellow liquid produced by the liver and is stored in the gallbladder. It plays a huge role in digestion by breaking down fats into smaller parts that can easily be absorbed through a process known as emulsification. One fact about bile juice contains many contents which are: bile salts (sodium glycocholate and sodium taurocholate), cholesterol, bilirubin, water, enzymes, and other small traces of metals. Bile is produced by the liver but is released into the duodenum, an upper part of the small intestines. Vomiting yellow does not always mean that you have a serious health condition. It could mean that your stomach is empty and therefore you have nothing else to excrete, apart from digestive secretions bile included.

What Causes Yellow Vomiting?

This condition has many causes. The amount of vomiting also depends on how severe the condition you are suffering from is. This means that you may vomit once or severally for days. By reading the points explained below, you’ll be able to understand the source of your problem. The causes are:

Dehydration. Water makes up 70% of our body mass. It regulates many body functions, such as breathing, digestion, and metabolism. Water makes our skin, hair, and nails look healthy. Most of this water is lost through sweating, feces, urine, vomiting, and breathing. For you to stay healthy, you must constantly take water to replace the lost amount. However, when the body lacks water, it goes into a dehydration state. Dehydration irritates the vomiting center in the brain. After a while, this triggers nausea, vomiting, low blood pressure, and feelings of dizziness. This vomiting makes dehydration worse because you lose more water. If not well taken care of, symptoms can worsen and lead you into fainting, hypovolemic shock, seizures, and coma.

Food Poisoning. Food poisoning is a common problem most people go through in their lives. It comes because of eating contaminated food or water. The contaminants can be bacteria or viruses that exist in the environment. Improper handling of food can introduce these microorganisms into food, which, when eaten, cause vomiting. This is because once bacteria reach the stomach, they release harmful toxins that irritate the stomach lining. Once your body notices these foreign bacteria in the digestive tract, it triggers vomiting to get rid of them before they cause more harm. You may also experience other symptoms of food poisoning, i.e., abdominal cramping, pain, diarrhea, and fever.


Allergic Reactions. Allergic reactions happen when our bodies are exposed to certain things. Allergies mostly happen when we come into contact with triggers which could be pollen grains, fur, cold, some types of medications or foods, etc. Vomiting yellow could mean that you have eaten food that your body cannot tolerate. For example, if you are allergic to milk, once you take it, an allergic reaction is usually triggered within the body. Your body takes milk as foreign and not as food and therefore it creates mechanisms of eliminating the milk, which is then excreted through vomiting. Other foods that cause sensitivities include eggs, soy, wheat, tree nuts, peanuts, fish, and shellfish. How would you know that the cause of your vomiting is food poisoning? Observe these signs: diarrhea, stomach pain, breathlessness, skin rashes, hives, swollen eyes, and mouth, etc.


Alcohol Intoxication and Intolerant. Although some people champion alcohol, it has so many negative effects on health. Any time you take alcohol, it damages your body cells bit by bit, and if you become an addict, it fully takes control of your body. Alcohol is a depressant in nature and, when taken in excess, it depresses the central nervous system. This is the reason you feel dizzy in taking excess alcohol. Again, it contains many toxins that your body may not tolerate, and this causes vomiting. Just like any other food or drink, if you are allergic to alcohol and you take it either knowingly or unknowingly, your body tries to get rid of it by making you vomit. In vomiting, bile is usually expelled as well, explaining the yellow fluid you see anytime you vomit. It is important to know that vomiting bile in the morning is more dangerous than at night because it causes severe bile hangover, which is life-threatening. Alcohol also causes severe dehydration and irritates the stomach lining, making you vomit.


Gastroenteritis. This is also called infectious diarrhea or stomach flu. It happens after ingesting contaminated food or water. Once the bacteria present in food reaches the stomach mucosa, they release their toxins which affect your health. This condition is like food poisoning, considering that their symptoms are almost alike. The fundamental difference between them is that food poisoning is caused by eating contaminated food or water, and infectious diarrhea is caused by bacterial or viral infections. Gastroenteritis is because of inflammation of the stomach lining, which makes sit hard to digest food. Ideally, your stomach works continuously to digest food into smaller particles that are easily absorbable. Since digestion is already impaired, and the food present in the stomach has pathogens, your body forces you to vomit to get rid of contaminated food content. Because some of this food would have already reached the duodenum where bile is, the food contents, therefore, look greenish-yellow. You may suffer additional symptoms such as abdominal pain, diarrhea, fatigue, and dehydration.


Pyloric Sphincter Malfunctions. The pyloric sphincter is a special valve made up of muscles that control how food moves from your stomach into your intestines promptly. It does this through a process known as gastric emptying. It is a layer of muscles found between the stomach and the duodenum. Just like any other muscle in the body, the pyloric sphincter can malfunction. It can be because of infections, trauma, strains, etc, and happens mostly in older people. Anything that causes this sphincter to thicken can induce vomiting. One of the most common conditions that affect this part is known as pyloric stenosis, where this muscle thickens, making it hard for food to pass. Although pyloric stenosis is common in children, it can happen in adulthood as well, and leads to severe vomiting anytime you eat food. Also, when the sphincter is not closing properly, it can make the bile juice flow backward, causing you to throw up yellow bile. Bile is usually a highly concentrated juice and once it combines with stomach contents, it gives you heartburn and pain. For more information about vomiting bile, click here:
https://www.healthline.com/health/green-vomit#green -or-yellow-vomit
https://www.webmd.com/digestive-disorders/what-to-know-about-yellow-bile#:~:text=What%20Is%20Yellow%20Bile%20Reflux,-Bile%20reflux%20is&text=Sometimes%20when%20you%20vomit%2C%20you,due%20to%20the%20underlying%20condition



Conclusion. Vomiting is a natural body defense mechanism that works to shield you from toxins and microbes. Vomiting yellow has many causes, such as having an empty stomach, gastroenteritis, alcohol intoxication, food allergies, and others. Regardless of the cause, vomiting yellow can be a sign that you have a more serious health condition that requires immediate medical attention. There are measures you can adopt to ease the vomiting and are: Avoid smoking or drinking alcoholic beverages, eat small meals frequently, avoid foods that trigger acid reflux such as caffeine and spicy ones, sit upright for at least 30 minutes after eating to avoid reflux of stomach contents back in the mouth. Also, losing weight may help reduce the excess pressure exerted on the abdominal organs. If symptoms persist, seek more advanced medical advice.

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Why Is My Vomit Yellow?