Appendicitis can lead to vomiting, as it can manifest itself in the early stages with gastrointestinal symptoms such as epigastric discomfort, nausea, and vomiting. Over time, the pain can shift to the lower right abdomen and become fixed. In some cases of severe appendicitis, a lot of fluid is produced, which can be inflammatory or purulent exudate, which can irritate the intestines and stomach, causing nausea, vomiting, and abdominal distension. Therefore, when you have appendicitis or vomiting, you need to go to the general surgery department, gastroenterology department, or emergency department as soon as possible to check the cause of the disease. Generally need to check the blood routine, C-reactive protein, abdominal ultrasound or abdominal CT and so on. According to the results of the examination, medication or surgical treatment will be given.