Why do you vomit? What causes vomiting and bleeding?

Vomiting is a symptom in which the body uses the peristaltic movement of the stomach to expel the contents of the stomach or part of the small intestine through the esophagus. So what are the common causes of vomiting?

Drug reactions

If you take drugs with strong gastrointestinal irritants such as sulfa and aspirin, vomiting will occur. In addition, if vomiting occurs, it may also be a sign of toxic stimulation. For example, swallowing strong acids, strong alkalis, mercury, arsenic and other poisons, as well as food poisoning caused by ingesting large amounts of bacterial toxins, can all cause vomiting.

Chronic pharyngitis

Chronic pharyngitis is a chronic inflammation of the pharyngeal mucosa, submucosa and lymphoid tissue, often accompanied by symptoms such as retching, pain, or foreign body sensation, dryness, and obstruction. Since the posterior pharyngeal wall is often stimulated by sticky secretions, dry heaving may occur when getting up in the morning or brushing teeth, but there are no symptoms such as difficulty swallowing, abdominal distension, and acid reflux.

Digestive system diseases

If you often experience dry heaving for no reason, you should be alert to digestive system diseases, such as nervous vomiting, cholecystitis, pancreatitis, acute gastritis, chronic gastritis, gastric and duodenal ulcers, extreme appendicitis, hepatitis, peritonitis, cholelithiasis, intestinal obstruction, pyloric obstruction, etc., which can all cause the above symptoms.

Central nervous system diseases

If symptoms of vomiting occur, be alert to central nervous system diseases, such as neurogenic vomiting, hysteria, various meningitis, cerebral infarction, cerebral hemorrhage, hypertensive encephalopathy, intracranial tumors, brain trauma and concussion. These diseases can cause vomiting due to increased intracranial pressure, and the vomiting is mostly projectile vomiting.

Metabolic diseases

If the body's metabolism is disordered, it is likely to lead to diseases such as uremia, chronic alcohol poisoning, acute liver necrosis, etc., which may affect the central nervous system and cause vomiting symptoms.

Psychological factors

If you are too nervous, overly tired, or have big mood swings, it will cause vomiting.

Pregnancy reactions

If healthy women of childbearing age experience symptoms such as morning vomiting, it may be caused by pregnancy reactions in early pregnancy.